"Right now Yunel's situation is day to day," manager John Farrell said. "We don't think that's a long-term issue."
The 29-year-old exited Sunday's 12-6 loss at Texas in the fifth inning after sustaining the injury two innings prior while running from first to third on a single by Colby Rasmus. The groin bothered him again in the fourth, and he was thrown out on a close play at first base on a ground ball.
Omar Vizquel, who played second base in the previous two games because Kelly Johnson was out with a sore hamstring, started at shortstop on Monday and batted ninth.
With the bullpen having been overworked in recent days, the Blue Jays entered Monday with an eight-man relief corps. This leaves them vulnerable on the bench, especially with the two middle infielders dealing with injuries.
"With the combination of eight relievers and [the Escobar and Johnson] situations, it makes our middle infield thin," Farrell said. "At some point we'll have to make some moves to adjust to protect ourselves if those two conditions persist."