Houston Astros place pitcher Tatsuya Imai on injured list after struggling start to $54 million contract

Pitcher Tatsuya Imai signed a three-year, $54 million deal with the Astros during the offseason after coming from Japan

Imai has posted a 1-0 record with a 7.27 ERA across three starts for Houston

Both Imai and player Pena have been placed on the injured list by the Astros