Simplify the following text for a Grade 7 native English-speaking person.
Original: He led the Mustangs to the league championship series in 1942 â `` 43 against the Calgary Currie Army team where injuries to the Mustangs ' goaltenders brought him back onto the ice in March 1943 .
Simplified: He led the Mustangs to the league championship series in 1942 â `` 43 against the Calgary Currie Army team . In March 1943 , injuries to the Mustangs ' goaltenders made him play again .