Texas Rangers shortstop Corey Seager is out of the lineup for a third straight game as he deals with a mild concussion, manager Skip Schumaker said ahead of the team’s matchup against the Boston Red Sox on Sunday night. Schumaker said Seager’s concussion is ongoing, and that the team is continuing to evaluate him as the games progress. The injury history includes a collision on Thursday against the Kansas City Royals, when Seager was trying to score from first on Brandon Nimmo’s double and collided with catcher Carter Jensen. Seager remained in the game after the collision and hit a home run, but he later missed time. Prior to the concussion-related absence, Seager missed 19 games in May and early June due to lower back inflammation. This season, he is batting .186 with nine home runs and 24 RBIs, according to the reports. The Rangers’ immediate focus remains on Seager’s health and determining when he can return to play.