WWE has confirmed that Sheamus vs. Mark Henry will be a Strap Match at the Extreme Rules PPV on 5/19. The match between Sheamus and Henry was confirmed this past Monday night during WWE RAW. Here is the updated card for the show.
WWE Championship - Last Man Standing Match
John Cena (c) vs. Ryback
WWE World Heavyweight Championship - Triple Threat Ladder Match
Dolph Ziggler (c) vs. Alberto Del Rio vs. Jack Swagger
Steel Cage Match
Triple H vs. Brock Lesnar
Sheamus vs. Mark Henry