Former Avalanche player Milan Hejduk officially became a U.S. citizen on Monday.

The U.S. Citizenship and Immigration Services tweeted video of Hejduk taking the oath.

He also took a photo with some of the 100 flash cards used to study for the citizenship test.

Hejduk played 14 seasons for the Avs before returning in 2014.

The USCIS tweeted "Official hat trick: Loves Hockey, Loves Colorado, Loves America @MilanHejduk #newUScitizen"