"In this game, anything can happen," he said. "I know the Knicks and Hawks play some pretty tough teams coming up. I'll definitely be watching. We'll see."
Walker's 3-pointer with 32 seconds remaining in regulation gave Charlotte an 82-80 lead, but Irving's jumper 7 seconds later tied the game.
Irving's basket gave Cleveland an 89-86 lead with 1:55 remaining in overtime, but Jefferson hit a free throw and Henderson's basket put the Bobcats ahead.
Following a Cleveland turnover, Walker missed a jumper, but Cody Zeller got the rebound and passed it out to Walker, who was fouled and made both shots with 17 seconds remaining to make it 92-89.
After Dion Waiters sank two free throws, Walker split a pair of foul shots with 11 seconds to go. Following a time out, Irving took the inbounds pass at the top of the key, but his wide-open 3-pointer rimmed out.
"That's as good a look that I had all night," he said. "It was in and out. It was a crucial miss, (but) I can live with that."
Henderson's two free throws with 7 seconds left gave the Bobcats a 95-91 lead.
Spencer Hawes made a 3-pointer with 4 seconds to get the Cavaliers within one before Jefferson hit a free throw with 2.3 seconds left. He missed the second, but the Cavaliers had no timeouts remaining and Hawes' desperation full-court heave was short.
NOTES: Charlotte has defeated Cleveland five straight times. ... Bobcats assistant coach Mark Price, who starred for the Cavaliers from 1986-95, got a big ovation when he was shown on the scoreboard in the second quarter. ... The Bobcats are 3-14 all-time at Quicken Loans Arena, the worst record by a visiting team at the 20-year-old arena.