Josh Hamilton didn't play Monday, and the Texas Rangers might be without him again for Tuesday's game against the Seattle Mariners.

Hamilton, who leads the majors with 20 home runs and 53 RBI, is the most recent Ranger to be dealing with an upper-respiratory infection that is plaguing the clubhouse.

He said he felt light-headed as far back as Saturday when he hit a walk-off home run in the 13th inning, was scheduled to start Monday and then again Wednesday. But when manager Ron Washington saw him Monday, he changed the plan.

"Exhausted," Washington said. "He looked bad."

The outfielder missed three starts in early May with back stiffness and was given a day off two weeks ago as Washington tried to keep his entire squad fresh during a 20-game stretch in 20 days.

Playing time is a significant factor in Hamilton's season. He is a free agent after this year, and while there are no questions about his ability, questions remain about his durability. He has played more than 140 games once in his career.

Hamiltonhas started 44 of the Rangers' first 49 games and appeared in one other. Before earning a 4-2 win over Seattle on Monday, the Rangers had lost three of the first four games Hamilton didn't start this season.