By Sam Frost Wyndham Clark has been one of the most in-form golfers on the planet in 2024, but his dreams of putting on the green jacket at The Masters next month have been thrown into doubt. The reigning US Open champion has revealed he is dealing with a back injury ahead of the Houston Open at Memorial Park on Thursday, with the 30-year-old only able to work on his chipping and putting earlier in the week. Clark started the season in style with a victory at the rain-shortened AT&T Pebble Beach Pro-Am in February before back-to-back second-place finishes at the Arnold Palmer Invitational and …