TORONTO - Struggling Maple Leafs forward Mikhail Grabovski underwent tests in New York on Thursday and Friday for some ongoing gastro-intestinal issues.

"We noticed that he's lost some weight over the last little while," Toronto coach Randy Carlyle told reporters Friday after the team skated at the club's suburban practice facility.

Grabovski and the Leafs played in New York on Wednesday and Carlyle said the decision was made to keep him there because of the quality of medical resources there.

Grabovski, whose ice time has been declining in recent outings, only saw 11 minutes of action against the Rangers.

Carlyle says Grabovski has had an ongoing ailment for some two years, with extended periods of heartburn and other discomfort.

"Now it's gotten to a point where he's lost some weight with it and we just felt it was best that we had the best people in the world take a look at him and he was 100 per cent on side with that," said the coach.