Toronto's top prospect was hit on the top of his left hand by a mid-90s fastball during Tuesday night's game with Triple-A Las Vegas.
Lawrie was taken to a local hospital for precautionary X-Rays following the incident. The results didn't reveal any structural damage and he is considered day-to-day.
"Fortunately the X-rays proved there were no fractures," Toronto manager John Farrell said. "So, he is dealing with some swelling in the back of his left hand.
"Hopefully it doesn't disrupt, too long, what otherwise has been a dominant year for him in Triple-A."
Prior to Tuesday night's game most of the talk surrounding Lawrie revolved around an imminent promotion to the Major Leagues. General manager Alex Anthopoulos described Lawrie as being "close" to joining the Blue Jays and many people expected that to come as soon as Friday in Baltimore.
That seems less likely following the hand injury. Lawrie is expected to require at least a couple of days of rest to allow the swelling in his hand to subside before he is able to resume baseball-related activities.
Farrell insisted to reporters on Wednesday afternoon that the injury doesn't affect Lawrie's schedule because there had never been a date set by the organization for when the native of Langley, British Columbia, would make his debut in the big leagues.
"There has been no timeframe for his callup," Farrell said. "He certainly has been talked about internally, he is having an outstanding year, he is dominating Triple-A, he's getting more comfortable with his play at third base.
"But to say it has changed any time frame, there has been no definitive decision on selection or callup. We just felt like we dodged a little bit of a bullet last night when the X-rays proved negative."
Lawrie is hitting .354 with 15 home runs and 49 RBIs in 52 games this season at Triple-A. He leads the Pacific Coast League in in hits (79), extra-base hits (38), doubles (15), runs (51) and total bases (151).
Toronto had been resisting the urge to promote Lawrie during the early stages of the year. The club instead asked Lawrie to improve his defense and also his discipline at the plate in the Minors.
Lawrie appears to have done just that. The 21-year-old has committed 12 errors this season, but seven of those came in his first 12 games of the season. Since then, he has fielded cleanly in 36 of 39 games.
The former first-round pick also struck out 23 times in April while walking just four times. In May, he showed a dramatic improvement in striking 17 times with 14 walks.
Those adjustments throughout the season are what have impressed Farrell the most.
"He set out with a very strong April, the league started to adjust to him and then he countered with that adjustment," Farrell said. "When [the production] trends upward, leveling off, and then upward again, it's clear that he has taken to heart and applying some of the pitch recognition and the strike zone discipline that he is showing."