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On YouTubeToronto Blue Jays News / Bluejaysnation / February 19
Blue Jays Nation’s 2025 Pre-Season Prospect Countdown – No. 11: Jonathan Clase
Today’s prospect could see some action with the big league team this season. This is Blue Jays Nation’s annual Pre-Season Prospect Countdown, this time looking at the top 40 prospects in the organization.
Toronto Blue Jays News / Bluejaysnation / January 27
Blue Jays 40-man Roster Review: Jonatan Clase performed well in his short stint with the team
Jonatan Clase is one of the most exciting prospects in the Blue Jays organization. This is Blue Jays Nation’s annual 40-man Roster Review, where we look at the players on the Blue Jays’ 40-man roster.
Toronto Blue Jays News / Bluebird Banter / January 14
Better Know Your Blue Jays 40-man: Jonatan Clase 
Jonatan (no h) Clase is a 22-year-old (23 in May) switch-hitting outfielder who came to the Jays in a trade (along with minor league catcher Jacob Sharp) with the Mariners for Yimi Garcia.
The 'Most 40 home run seasons in MLB history' quiz
How many of the 50 MLB players with three or more 40 home run seasons can you name in six minutes?
MLB News / Blue Jays Insider / December 27
Injury update on Daulton Varsho spells trouble for Toronto Blue Jays
The Toronto Blue Jays are already in need of some help in the outfield but with the most recent update on Daulton Varsho, they might need more than expected.
Toronto Blue Jays News / Bluejaysnation / December 7
Blue Jays – Loperfido or Clase? A look at which outfielder fits best on the 2025 roster
The Blue Jays were busy at last year’s trade deadline, trading veteran players with expiring contracts and acquiring a whopping 13 players, a majority of whom were prospects.
Seattle Mariners News / Seattle Mariners on SI / September 26
Former Seattle Mariners Top Prospect Reacts to First Big-League Home Run
Former Seattle Mariners top prospect Jonatan Clase connected for his first major league home run on Wednesday night as a member of the Toronto Blue Jays.
Toronto Blue Jays News / Fastball on SI / September 26
Toronto Blue Jays Trade Acquisition Hits First Major League Homer in Wednesday Win
The Toronto Blue Jays beat the Boston Red Sox 6-1 on Wednesday night at Rogers Centre. With the win, the Jays are now 74-85 on the season. It's been an incredibly disappointing year for a team that made the playoffs in each of the last two seasons.
MLB News / Field Level Media / September 25
Jonatan Clase homers as Jays end Red Sox's playoff hopes
Jonatan Clase collected three hits, including his first career major league home run, as the Toronto Blue Jays defeated the visiting Boston Red Sox 6-1 on Thursday night.
Toronto Blue Jays News / Bluejaysnation / September 25
Jonatan Clase hit his first big league home run in the Blue Jays’ 6-1 victory over the Red Sox
The losing streak is over! On Wednesday, the Toronto Blue Jays defeated the Boston Red Sox 6-1, ending their five-game losing streak. Their record now sits at 73-80 with just three more games left this season.
Seattle Mariners News / Seattle Mariners on SI / September 20
Former Seattle Mariners Top Prospect Gets Another Crack in Big Leagues with Blue Jays
Congratulations are in order for former Seattle Mariners top prospect Jonatan Clase, who earned his way back to the big leagues with the Toronto Blue Jays on Thursday.
Toronto Blue Jays News / Fastball on SI / September 19
Toronto Blue Jays Lose Star to Another Injury as Rough Season Continues
Bo Bichette's season is officially over for the Toronto Blue Jays after he suffered a broken finger earlier this week. The Blue Jays have recalled outfielder Jonatan Clase, who was acquired at the trade deadline, to take his spot.
Toronto Blue Jays News / Bluejaysnation / September 19
Getting to know Jonatan Clase, the latest Blue Jays call-up from Triple-A Buffalo
Another player the Toronto Blue Jays acquired before the 2024 trade deadline is joining the big league team. On Thursday, the Blue Jays called up outfielder Jonatan Clase, as Bo Bichette once again was placed on the 10-day Injured List, this time because of a broken middle finger on his right hand.
Toronto Blue Jays News / Bluejaysnation / September 19
Blue Jays recall Jonatan Clase as Bo Bichette lands back on the Injured List
Bo Bichette’s season has come to an end. The Toronto Blue Jays announced ahead of their series finale with the Texas Rangers on Thursday that Bo Bichette has been placed on the Injured List with a right middle finger fracture.
Toronto Blue Jays News / MLB Trade Rumors / September 19
Blue Jays star shortstop out for year due to fractured finger
The broken finger caps off a nightmare season — one that’s seen the two-time All-Star weather a pair of IL stints due to calf strains that have severely hobbled him.
Toronto Blue Jays News / Yardbarker / August 1
Four promising players who could have big roles for Blue Jays
As the Toronto Blue Jays look to build for next season and beyond, several young talents are emerging as potential leaders.
MLB News / Fastball on SI / July 26
Toronto Blue Jays Agree to Trade Workhorse Reliever Yimi García to Seattle Mariners
The Toronto Blue Jays have traded right-handed relief pitcher Yimi García to the Seattle Mariners, the team announced Friday evening. ESPN's Jeff Passan was the first to report the deal.
Seattle Mariners News / Seattle Mariners on SI / July 6
Seattle Mariners Outfield Prospect Continues Strong Season at Triple-A on Friday
Well-regarded Seattle Mariners top prospect Jonatan Clase continued his strong run of play at Triple-A Tacoma on Friday night, blasting his 10th home run of the season.
Seattle Mariners News / Seattle Mariners on SI / June 23
Mariners' Double-A Affiliate Releases Sick Bobblehead of M's Speedster
Seattle Mariners' outfielder Jonatan Clase, who is currently in Triple-A but has had two separate stints with the M's this year, had an incredible bobblehead night on Saturday at Double-A Arkansas.
Seattle Mariners News / Seattle Mariners on SI / June 3
Mariners Make Intriguing Roster Move on Monday, Another to Come
The Seattle Mariners have sent down speedy outfielder and current top prospect Jonatan Clase to Triple-A Tacoma. They have not announced a corresponding roster move yet.
Seattle Mariners News / Last Word On Sports / May 27
Rookie Outfielder Trying to Make Second Impression in Seattle
Seattle Mariners rookie outfielder, Jonatan Clase, is trying to make a good impression in Seattle after getting his second shot with the big club this season. Clase was recalled on May 24th in a move that sent third baseman Luis Urías to Triple-A Tacoma. This is the second time Clase has been called up in 2024.
Seattle Mariners News / Field Level Media / May 24
Mariners send down struggling 3B Luis Urias
The Seattle Mariners optioned infielder Luis Urias to Triple-A Tacoma on Friday and recalled outfielder Jonatan Clase. Urias, 26, started 25 of the 34 games he played in this season at third base but was batting just .152 with three home runs and 12 RBIs.
Seattle Mariners News / Yardbarker / April 15, 2024
Seattle Mariners make big roster move in search of offensive pop
In search of an offensive catalyst, the Mariners recently called up a player who has shown vast potential.
Seattle Mariners News / MLB Trade Rumors / April 14, 2024
Mariners to promote top OF prospect Jonatan Clase
Clase’s first appearance in a game will mark his official MLB debut, and the highlight of a pro career that began as an international signing in 2018.
Seattle Mariners News / Lookout Landing / March 29, 2024
Jonatan Clase brings discipline, hard work to the next stage of his baseball journey
From unheralded prospect to one of the youngest players in Triple-A, how Jonatan Clase has worked his way up the minor league ladder and now waits on the
Seattle Mariners News / Lookout Landing / January 25, 2024
40 in 40: Last chance to get on the Jonatan Clase hype train early
The switch hitting prospect with some pop has blink-and-you-miss-it level speed, but keep your eyes open, because they are one to watch. It seems that no amount of measuring, no amount of observation, can accurately predict the hidden math of the subconscious.
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