Billy Horschel beats Rory McIlroy in Wentworth play-off to claim dramatic win 

It's the American's second BMW PGA Championship title in four years.

Rory McIlroy congratulates Billy Horschel after his play-off victory. Picture: Zac Goodwin/PA Wire.

Billy Horschel defeated Rory McIlroy in a play-off to win his second BMW PGA Championship title in four years on a dramatic final day at Wentworth.

Horschel eagled the second extra hole to win the DP World Tour's flagship event after he, McIlroy and Thriston Lawrence had finished tied on 20 under par.