Forsberg lined in a shot shortly after corralling a faceoff. Mike Fisher had tied up the game about 3 minutes earlier on a breakaway.
Gabriel Landeskog and Francois Beauchemin scored for the struggling Avalanche, who have lost 12 of their past 13 home games.
McLeod made quite a debut against his former team a day after being acquired in a trade with Nashville.
McLeod, who was honored with a video tribute in the first period, did what the gritty forward does best — fight. He squared off with Jarome Iginla in a second-period bout that pretty much ended in a draw.
