Brooks Koepka a doubt for the Masters after pulling out of WGC Championship with knee injury
![Brooks Koepka a doubt for the Masters after pulling out of WGC Championship with knee injury](https://i.dailymail.co.uk/1s/2021/03/21/23/40760428-0-image-a-92_1616369733929.jpg)
The 30-year-old has pulled out of this week's WGC-Match Play Championship in Texas, with short game coach and close friend Pete Cowen believing he is fighting a losing battle to be fit for Augusta.