(updates after Djokovic win) July 30 (Reuters) – Novak Djokovic maintained his unbeaten record against Frenchman Gael Monfils with a 6-3 6-2 win in the semi-finals of the Rogers Cup in Toronto on Saturday, while Japan’s Kei Nishikori also reached the final after beating Swiss second seed Stan Wawrinka. World number one Djokovic, now 12-0 against Monfils, has the opportunity to become the tournament’s first four-time winner when he meets Nishikori in Sunday’s final Nishikori came from 2-5 down in the opening set to stun Wawrinka 7-6(6) 6-1 in the first semi-final at the Aviva Centre.