Dwane Casey could feel the lump growing in his throat when he was a weekend NBA coaches retreat and got an email saying prized rookie Jonas Valanciunas had felt "something pop" in is left leg when the 7-footer took a routine jump shot in a routine workout Saturday.

The Raptors coach knows all too well the trouble a player can get into with a bad calf or, worst-case, a popped Achilles and when Casey got word in Chicago, he immediately feared the worst.

But as he stood in the Air Canada Centre on Monday, not 100 feet from where Valanciunas tweaked his leg, Casey was in a much brighter mood.

There is no definitive word on when Valanciunas will be able to resume full on-court work but the coach understands it'll be sooner rather than later.