The red-hot Lupul, who assisted on the first Toronto goal and has 14 points since returning from a 25-game absence because of a broken forearm, appeared to take a blow to the head in the first period after being sandwiched by Rosehill and Adam Hall, who also made his debut for Philadelphia.
The Maple Leafs sniper got back to his feet as play continued but was wobbly and had to be helped onto the bench. He left for the locker-room shortly afterwards and did not return because of an upper-body injury.
"You always take those situations with caution and he feels fine now, but that's what happens in the context of the game," said Maple Leafs coach Randy Carlyle, whose team saw its three-game winning streak and eight-game point streak snapped. "We'll have a much better read (on Friday). If we're to say that he's probably going to practise (Friday) I would say that he's 50-50 on practising."
http://www.tsn.ca/nhl/story/?id=419913
I think this morning will be tell the real story. If he wakes up foggy, it could be a while.