Toronto Maple Leafs goaltender Petr Mrazek is expected to miss four weeks with a groin injury.

The team placed the goaltender, who is in his first season with the Leafs, on injured reserve Sunday.

Mrazek originally injured his groin during a 3-2 loss to the Ottawa Senators on Oct. 14 and had a setback earlier this week.

The 29-year-old has a 1-1-0 record with 4.20 goals against average and .877 save percentage this season.