Rays manager Joe Maddon, before Thursday's game against Oakland, said the team will continue working with the left-hander between his starts.
"We're just evaluating everything right now," Maddon said. "Our main concern is to get him right."
Kazmir gave up seven runs and eight hits in 4 1-3 innings of Wednesday night's 7-6 loss to Oakland. Over his last five starts, he has given up 31 runs -- 29 earned -- in 23 innings.