TAMPA, Fla. — Steven Stamkos had two goals and an assist to help new Tampa Bay coach Guy Boucher win his NHL debut in the Lightning's 5-3 victory over the Atlanta Thrashers on Saturday night.

Stamkos had 51 goals last season to tie Pittsburgh's Sidney Crosby for the league lead. Steve Downie, Dominic Moore and Vincent Lecavalier also scored for the Lightning in their season opener.

The Thrashers, who trailed 4-0 in the second period, got goals from Tobias Enstrom, Ben Eager and Chris Thorburn.

Boucher was hired as the Lightning's seventh head coach on June 10. He coached Montreal's AHL farm team in Hamilton last season, going 52-17-11 en route to the Western Conference finals.

Thorburn pulled Atlanta within 4-3 at 7:41 of the third. Stamkos responded with a nifty redirection from the low slot to put the Lightning back up by two with 9:01 to play.

After Downie scored a power-play goal at 5:23 of the first, Moore put the Lightning ahead 2-0 with 11:39 left in the period. Tampa Bay outshot the Thrashers 20-13 during the first.

Lecavalier's power-play goal 2:20 into the second period made it 3-0. Stamkos extended the lead to 4-0 at 5:21.

The Thrashers cut the deficit to 4-2 late in the second. Enstrom scored during a 5-on-3 power play with 3:29 remaining before Eager added an unassisted goal at 18:12.

Atlanta goalie Ondrej Pavelec, diagnosed with a concussion, remained hospitalized Saturday. He was undergoing additional tests to determine why he collapsed in Friday night's season-opening 4-2 win over Washington.

NOTES: Tampa Bay improved to 21-8-1-2 at home against the Thrashers. ... Atlanta called up G Drew MacIntyre from their AHL affiliate in Chicago to back up Chris Mason. ... Tampa Bay D Mattias Ohlund (knee) didn't play. ... Lecavalier has 27 goals and 60 points in 61 games against Atlanta.