Seattle Mariners outfielder Julio Rodrguez has been placed on the seven-day concussion injured list, the team announced on Friday.Rodrguez, 25, left Thursdays 1-0 win over the Los Angeles Angels after he was hit on the back of the helmet by a throw while running the bases in the first inning.The Mariners All-Star drew a walk and was running to second base on a grounder by DH Dominic Canzone. Angels first baseman Nolan Schanuel tried to start a double play, but his throw to second hit Rodrguezs head as he slid into the bag. The ricochet off his helmet allowed Rodrguez to advance to third base.Heres another look at Julio Rodrguez conferring with Mariners head athletic trainer Kyle Torgerson in the home dugout...And the play itself, in which he took the 78.2 mph throw off the back of his helmet: pic.twitter.com/DY2qPgl6AG Daniel Kramer (@DKramer_) July 3, 2026After reaching third safely, Rodrguez crouched down, which compelled head trainer Kyle Torgerson and Mariners manager Dan Wilson to check on him. Rodrguez stayed in the game and played center field in the top of the second inning. However, after the Angels were retired in order, Rodrguez talked to Torgerson in the dugout and went to the clubhouse. He was replaced in the lineup by Victor Robles.Following the game, the Mariners announced that Rodrguez was going through concussion protocol and would be evaluated again on Friday. Dan Wilson on the decision to put Julio on the IL, and what he was feeling todayHe just wasnt feeling like himself pic.twitter.com/sIj9ajozs2 Marine Layer Podcast (@MarineLayerPod) July 3, 2026As he said last night when he got [to third base], when the adrenaline ran out, he felt light-headed at the time, Wilson told reporters before Fridays game. He just wasnt feeling himself. Came in today, didnt feel himself again.With head injuries, you have to be so careful, he added. Giving him the extra time and precautions is definitely the way to go at this point. Rodrguez has a slash line of .259/.323/.424 and is tied for the team lead with 14 home runs. Hes also hit 15 doubles with 40 RBI and 12 stolen bases in 87 games. To fill Rodrguezs spot on the major-league roster, utilityman Miles Mastrobuoni was recalled from Triple-A Tacoma, where he played second base, third base and left field. He played eight games with the Mariners earlier this season.