The 21-year-old star sat out Wednesday's 3-2 home win over Toronto with a sore groin but he looked no worse for the wear in the final exhibition game on this side of the Atlantic for Pittsburgh (3-0-1).
Crosby, who earlier set up Mark Eaton's goal, tied the game 3-3 at 5:26 of the third period when he took Miro Satan's breakaway pass and beat Vesa Toskala while being hauled to the ice.
"No worries," Crosby said. "It was just a groin tweak, everything was good."
Matt Cooke banged home a loose puck with 1:35 left for Pittsburgh's first and only lead of the game. Kris Letang tied it 4-4 at 16:14 after Tomas Kaberle, who also had two assists, gave the Maple Leafs a 4-3 lead at 7:55.
Janne Pesonen scored for the Penguins, who leave Saturday for Stockholm, Sweden, where they will open the NHL season with games against the Ottawa Senators on Oct. 4-5. They will also take a brief trip to Finland for an exhibition game with Jokerit Helsinki.
"We're thinking too much - we've got to play with our instinct," Penguins coach Michel said. "When you're thinking too much about the positioning, you're not reacting like you're supposed to react.
"We're not in groove right now. It takes time."
Crosby said why.
"We do have a few new guys and I think everyone is getting a little bit adjusted," he said. "With each game we're getting more familiar with everyone, that takes time, but guys are really focused on playing the way we know how and playing the system.
"As long as we're doing that, we have a lot of skill so that should take over."
Luke Schenn, the fifth overall pick in the 2008 draft, Dominic Moore and Alexei Ponikarovsky scored for the Maple Leafs (1-2-0) before a crowd of 18,884.
"What happened shouldn't happen," Leafs coach Ron Wilson said of losing the lead late. "We watched all the replays and all the mistakes are correctable."
|Power Play %||16.5%||19.7%|
|% on Road||15.6%||10.3%|
|% at Home||17.0%||26.2%|