KANSAS CITY, Mo. - The Toronto Blue Jays caught a tough break Friday when a drive from Royals slugger Mike Moustakas was ruled a home run after a fan caught the ball near the top of the right-field wall at Kauffman Stadium.

The second-inning play gave Kansas City a 2-0 lead in Game 6 of the American League Championship Series. Toronto right-fielder Jose Bautista immediately claimed there was fan interference on the play.

The Blue Jays asked for a review but the ruling was upheld.

The fan was identified by the Kansas City Star as 19-year-old Caleb Humphreys. He used his glove to catch the ball just as it approached the top of the wall. Television replays could not definitively show whether the ball would have cleared the wall or remained in the field of play had he not touched it.

In the third inning, Bautista hit a solo homer off Royals starter Yordano Ventura to put Toronto on the board. Ben Zobrist hit a solo homer in the opening frame off Blue Jays starter David Price.

The Royals, who entered play with a 3-2 series lead, had a 2-1 lead as play continued in the fifth inning.