KANSAS CITY, Mo. (AP) -

It's been a long time since a game this late in the season meant so much to the Kansas City Royals. It meant a lot. And it's still not over. 

The Royals game with Cleveland was suspended Sunday night by a thunderstorm. The game stopped with the Indians leading the Royals 4-2 headed into the bottom of the 10th inning. 

Sunday was the Indians last scheduled regular season visit to Kanasas City, so the game will resume on Sept. 22 in Cleveland before the start of a three-game series between the AL Central rivals.

The game is so important since the Royals cling to a half-game lead over Detroit in the AL Central. A loss would put the two back into a tie for the division lead. Cleveland is only 3 1/2 games back. 

The Royals will give up home field advantage for at least a half an inning when the game resumes. Kansas City will bat in the bottom of the tenth, but at Cleveland's Progressive Field. 

The Royals have six games left with their two division rivals. The will host Detroit Sept. 19-21 then travel to Cleveland.