AUSTIN, Texas – Paul Casey was tied with Corey Conners through two holes on Day 1 at the WGC-Dell Technologies Match Play when he conceded the match. According to PGA Tour officials, Casey was suffering from back spasms and sought treatment.

Casey won the first hole with a par and had just lost the second when Conners holed out for eagle. According to ShotLink, the Englishman hit his drive at the third hole before conceding the match.

Casey, who has finished second at this event twice, can still play the last two days of pool play and earn a spot in the weekend’s knockout rounds if he’s healthy enough.

According to a member of Casey’s management team he hopes to play Thursday.