The Toronto Blue Jays placed Vladimir Guerrero Jr., a six-time All-Star, on the seven-day injured list due to concussion symptoms on Saturday. In his absence, outfielder Daz Cameron was called up from Triple-A Buffalo. To accommodate the roster change, Lazaro Estrada, a right-hander, was designated for assignment.

Additionally, left-hander Ricky Tiedemann was recalled from Buffalo, while right-hander Chase Lee was optioned to Triple-A. Guerrero sustained the concussion symptoms during Friday’s game against the Yankees after colliding with New York rookie shortstop George Lombard Jr. in a play at third base during the sixth inning.

Following the collision, Guerrero’s helmet was dislodged, and although he managed to score a run, he appeared disoriented. Manager John Schneider mentioned that Guerrero experienced a headache after the game, which persisted into Saturday. Guerrero currently holds a batting average of .263 with seven home runs and 46 RBIs.

Tiedemann, who recently joined the team, has a record of 0-1 with a 6.43 ERA in seven games, including two starts, across various minor league levels this season.