Guide to the Queen Mother Champion Chase, Wednesday's Cheltenham Festival highlight

Altior strode away to win the Arkle 12 months ago after Charbel's late fall

Three potential superstars will collide in Wednesday's Betway Queen Mother Champion Chase, where a mouthwatering race looks certain.

The late decision by Willie Mullins to add Douvan into the mix, rather than go for the Ryanair Chase on Thursday, means the possibility of a match between two talented young chasers gets additional lustre.

But could eight fences over two miles, at an almost certain fast pace, and throwing in the spectre of heavy ground mean there is a shock in store? Read on for our guide...