IT was another successful day at the US Open for tennis tipster David Jack.
He accepted the first semi-final between Novak Djokovic and Roger Federer was too close to call so predicted a five-set thriller at 11-4 with Skybet.
That's exactly what we got with world No.1 Djokovic fighting back from losing the first two sets to win 3-2.
DJ's been on top of his game all week with his predictions on Andy Murray's progress being pretty much spot on. Let's hope his Murray to beat Rafael Nadal punt comes up too.