Diaz left Monday's game against the Red Sox after fouling a ball off his left foot, Marc Topkin of the Tampa Bay Times reports.
Diaz immediately went down after fouling a ball off his own foot, and after being looked at by the team trainer, he hobbled off the field. Nate Lowe entered the contest with an 0-2 count and finished the at-bat. Diaz will be considered day-to-day until the severity of his injury is uncovered. He was headed for X-rays late Monday, Juan Toribio of MLB.com reports.