Halladay landed on the 15-day disabled list on Friday after undergoing an emergency appendectomy in Toronto that will keep him on the shelf for at least one month. During Friday's victory over Tampa Bay, Glaus was forced to exit the game in the first inning after reinjuring his left foot.
On Saturday, the Blue Jays recalled infielder Ryan Roberts from Triple-A Syracuse to fill the roster spot vacated by Halladay. Roberts received a similar call on April 17 after Glaus landed on the 15-day DL and missed 14 games with a bone spur in his left foot. It's the same issue that flared up on Glaus while running to first base on Friday.
"It's the same thing. He said he felt a pop in there," Toronto manager John Gibbons said on Saturday. "We don't know what's going to happen with Troy. Hopefully, he doesn't have to go on the DL. But if he does, then that gives us another spot to play with a little bit."
Meaning, should Glaus be place on the DL for the second time this season, it would clear a spot on the active roster to add a pitcher for what was originally Halladay's next start on Tuesday. First, though, Gibbons said the Jays need to get the results of an MRI exam to learn the extent of Glaus' latest injury.
"The doctor has to look at it before we decide," said Gibbons, who added that Glaus wasn't available on Saturday or Sunday. "We'll know something either this afternoon or tomorrow. I think he's getting an MRI. It might not be as bad as we think as far as how you can recover from it."
Who gets the call? The reality is that Toronto will need a starter for Tuesday whether Glaus lands on the DL or not -- though it seems likely he will. The Blue Jays are content with calling up someone from the Minor Leagues to fill in for Halladay, who was released from Mt. Sinai Hospital in Toronto on Saturday. Gibbons said right-hander Casey Janssen, who started 17 games for the Jays in 2006, will remain in the bullpen.
The likely candidates to get the nod for Tuesday include Ty Taubenheim (2-2, 5.34 ERA at Triple-A), Josh Banks (4-0, 3.57 at Triple-A), David Purcey (3-1, 3.13 at Double-A) or Jesse Litsch (5-1, 0.96 at Double-A). Taubenheim, who made seven starts for Toronto last year, and Banks currently are on the 40-man roster, which means a subsequent transaction wouldn't be required to promote either of them to the Majors.
After Tuesday, the Blue Jays won't require a fifth starter until May 26, when Toronto is in Minnesota for a three-game series with the Twins. With an upcoming off-day on Thursday, and the Hall of Fame Game scheduled for May 21, the Jays can stick with a four-man rotation of A.J. Burnett, Dustin McGowan, Shaun Marcum and Tomo Ohka until the game against Minnesota.
Throwing again: As planned, Blue Jays left-hander Gustavo Chacin played catch on flat ground prior to Saturday's game against the Devil Rays. It marked the first time Chacin, who is one of nine Toronto players currently on the DL, has thrown since injuring his left shoulder during a bullpen session on April 30. Chacin could be out until early June, because Gibbons indicated on Friday that the lefty likely will need at least three Minor League rehabilitation starts before rejoining the rotation.
The countdown: Blue Jays designated hitter Frank Thomas belted his 492nd career home run in the third inning on Saturday. The Big Hurt is three home runs shy of tying Edgar Martinez (243 homers) for the most long balls by a DH and one homer behind Fred McGriff and Lou Gehrig for 21st on the all-time list.
Back in action: On Saturday, Toronto shortstop Royce Clayton was back in the starting lineup for the first time since Tuesday. Gibbons said the 37-year-old infielder sat out the previous three games because of a mild back injury.
Did you know? Entering Saturday, the Blue Jays have had players miss a combined 201 games due to various injuries. That represented the second-highest total amount of games missed in the American League.
Coming up: Toronto right-hander Shaun Marcum (1-2, 6.06 ERA) is scheduled to take the mound when the Blue Jays host the Devil Rays in the finale of a three-game set at 1:07 p.m. ET on Sunday at Rogers Centre. Tampa Bay will counter with righty Jae Seo (1-3, 8.82 ERA).
Jordan Bastian is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.