Ricky Tiedemann and Daz Cameron had lockers in the Toronto Blue Jays’ clubhouse Saturday, Aug. 15, suggesting Vladimir Guerrero Jr. might be getting some time off after a concussion scare the night before.
Guerrero Jr. was evaluated for a possible concussion after leaving in the sixth inning of the Blue Jays’ win over the Yankees in Toronto. His head collided with the knee of Yankees shortstop George Lombard Jr. at third base in a case of poor timing.
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Tiedemann, a left-handed pitcher, was the Blue Jays’ No. 1 prospect — and a consensus top-100 prospect in all of baseball — as recently as 2023. He has been set back by injuries since then, missing time in 2024 due to bone chips in his elbow and all of 2025 following Tommy John surgery.
In three Triple-A games this season, Tiedemann allowed four runs across three innings.
Prior to Saturday’s game against the Yankees, the Blue Jays officially promoted Tiedemann and optioned pitcher Chase Lee.
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Tiedemann was added to the Blue Jays’ 40-man roster to protect him from being selected in the 2025 Rule 5 draft, paving the way to his first big league promotion.
If Guerrero is concussed, the Blue Jays can place him on the 7-day injured list. Cameron would presumably take his place on the Blue Jays’ active roster.
An outfielder, Cameron was signed by the Blue Jays after he was designated for assignment by the Milwaukee Brewers. The son of former major league outfielder Mike Cameron has a .200 batting average, 11 home runs, and 42 RBIs in 160 MLB games with the Detroit Tigers, Oakland A’s, and Milwaukee.
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Cameron was slashing .367/.462/.582 in 23 games at Triple-A Buffalo after signing a minor league contract with Toronto on July 8.
Guerrero was the MVP of last year’s American League Championship Series and an All-Star for the sixth time in July. He’s slashing .263/.337/.356 this season, on pace for the lowest OPS (.693) of his career.
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