Nikola Mirotic is ready to face Team USA.

Team USA struggled through the end of pool play at the Rio Olympics but escaped undefeated at 5-0. In the quarterfinals, the Americans looked much improved with a 105-78 dismantling of Argentina.

Now Team USA must face a strong Spain teaming the semifinals. Before the game can begin on the court, Spaniard Nikola Mirotic has begun the mental game on Twitter.

Mirotic tweeted at Jimmy Butler, his teammate on the Chicago Bulls, using the catchphrase used most recently in a widespread way by Barack Obama:

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The Olympic semifinal between the United States and Spain tips off Friday at 10:30 a.m. ET.