BOSTON -- Third baseman Brett Lawrie made his return to the Blue Jays' lineup on Saturday afternoon following a one-game absence with a right calf injury.

Lawrie suffered a contusion on his right leg while diving into the camera well at Yankee Stadium on Wednesday in an effort to catch a Mark Teixeira popup.

The scary incident looked more severe than it ended up being, and after passing a series of tests on Saturday, Lawrie was given the green light to start.

"Brett has made a remarkable recovery when you consider the fall he took in New York and the impact that his leg sustained when he flipped over the rail," manager John Farrell said. "He went through all kinds of change-of-direction [tests], sprint, slow down, to stress that calf area, and he came out fine. So he's in the lineup tonight at third base for us."

X-rays on Wednesday were negative and that had Lawrie talking about an imminent return to the lineup. At the time, that assessment seemed overly optimistic because Lawrie was walking with a severe limp, but he made a quick recovery.

Lawrie underwent various forms of treatment during the past two days, and Farrell said there is no concern that the club is prematurely inserting Lawrie back into the starting lineup.

"I think those tests, they're strenuous to the point where if he felt anything, we'd see it either through his movements or he'd make comments or remarks about that, and that wasn't the case," Farrell said. "He has a high pain threshold, but that's not to say he's playing in pain today. He's fully ready to go."

Lawrie entered play on Saturday hitting .278 with eight home runs and 34 RBIs in 87 games this season.

Frasor heads to 15-day DL with forearm tightness

BOSTON -- Right-hander Jason Frasor was placed on the 15-day disabled list on Saturday afternoon with tightness in his right forearm.

Frasor is optimistic that the injury will end up being a relatively short-term problem, but he's scheduled to undergo an MRI on Monday with Dr. James Andrews to rule out any further damage.

The soon-to-be 35-year-old has experienced soreness for most of the season, but he experienced a different level of pain while warming up in Boston on Friday night.

"I've had discomfort, I think we all have had discomfort, for a few months now," Frasor said. "But I never said anything, I drank my Red Bull and everything's fine. You add in adrenaline, and it's really not that big of a deal. I've almost gone four months now doing that exact routine.

"But last night was a little different ... a little tighter, a little more discomfort. I just didn't feel right."

Frasor is 1-1 with a 4.00 ERA, along with 45 strikeouts in 36 innings this season. His 42 appearances and 12 holds this year are both ranked first for Toronto.

The Chicago native is currently in his ninth season at the Major League level. He previously underwent two Tommy John surgeries in his career -- once in college and once while in the Minors -- but this is the first time he has been placed on the disabled list at the big league level.

"It is remarkable when you consider nine years of never being inactive and this is the first time over that nine-year period," Blue Jays manager John Farrell said. "A couple of things quickly come to mind. One, it's a tremendous work ethic to keep himself in shape.

"Two, he has a very clean delivery, a clean arm action that doesn't place undue stress on the shoulder or the elbow, and that's what has allowed him to have the longevity and the durability that he has shown."

The injury is yet another setback for a club that has been decimated by injuries for most of the past two months. Starting pitchers Brandon Morrow, Kyle Drabek and Drew Hutchison are on the disabled list, while relievers Sergio Santos and Luis Perez have been ruled out for the rest of the year.

Happ, Lyon add depth to Toronto's bullpen

BOSTON -- The Blue Jays' bullpen received a much-needed boost on Saturday when Brandon Lyon and J.A. Happ reported for duty.

The two pitchers were acquired as part of Friday's 10-player deal with Houston. They go from one last-place team to another, but there's still a big difference between the two organizations.

Houston is currently in rebuilding mode and 26 games under .500, whereas the Blue Jays entered play on Saturday just 3 1/2 games back of an American League Wild Card spot with a little more than two months remaining in the season.

"It has been a little while since we've been in a situation like this," said Lyon, who posted a 3.25 ERA in 36 innings for Houston. "So I'm excited, I'm excited to get out there and obviously see what I can do and get that adrenaline flowing.

"It's a little bit different of an adrenaline flow when you have the game on the line in situations where teams are just trying to get a win. I'm excited for it, I can't wait to get out there."

Happ is expected to eventually join the Blue Jays' rotation, but for now, he will pitch in relief. Manager John Farrell wants to go through another turn in the rotation before making any decisions about who Happ could possibly replace in the starting five.

The 29-year-old hasn't pitched in relief since 2009, and while starting is his preferred spot, Happ is willing to accept whatever role the club wants to put him in.

"That's what I'm most comfortable with," said Happ, who is 7-9 with a 4.83 ERA in 18 starts this year. "It's what I've done the most. I don't want to make any waves, cause any waves, but that's where I see myself being, and hopefully, they do, too, at some point."

For Lyon, the trade marked a return to the franchise that selected him in the 14th round of the 1999 First-Year Player Draft. The Utah native proceeded to make 21 starts for the Blue Jays in 2001-02 before he was claimed off waivers by Boston.

Since that time, Lyon has spent his entire career out of the bullpen where he owns a career 30-37 record with a 3.88 ERA and 353 strikeouts in 505 2/3 innings.

"It makes it easier for me," Lyon said of going back to Toronto. "Obviously feeling for J.A. right now, I don't think he knows many people around here.

"At least, I can come in here, I can see a few faces that I've seen in the past and it does make it a little bit easier. But any time you have to switch teams and go through the whole meeting new teammates, it's uncomfortable for a few days. But once the game starts, you're playing baseball, you might just have a different uniform on. It will be a lot easier once the game starts for everybody in this situation."