Watch: Giannis appears to step out of bounds before dunking game-winner

The final seconds of Friday's matchup between the Milwaukee Bucks and Oklahoma City Thunder are clouded in controversy.

With the score locked at 95-95, Bucks star Giannis Antetokounmpo was fed the inbound pass and drove along the baseline before dunking home the eventual game-winner over Russell Westbrook with just 0.9 seconds left.

Replays showed, however, that Antetokounmpo stepped on the baseline, which should have given the Thunder possession.

The officials didn't call for a replay, though, and when the final buzzer sounded, the Thunder players were quick to ask why that was the case.

Since the whistle wasn't blown, the refs had no reason to look at the footage. Per league rules, a review can only be initiated on a called out-of-bounds play, as well as those where there's doubt as to which player touched the ball last.

Milwaukee's 97-95 victory was its second in as many nights, while Oklahoma City's six-game winning streak met its demise.