Stanislas Wawrinka and Edouard Roger-Vasselin registered hard-fought wins to set up the final of the Chennai Open on Saturday. Top-seeded Wawrinka saw a resurgent Vasek Pospisil of Canada concede their semifinal at 6-4, 5-5 due to a back strain while Frenchman Roger-Vasselin sweated it out against Spanish player Marcel Granollers for a 6-2, 4-6, 6-3 victory. The eighth-ranked Wawrinka was surprised when fifth-seeded Pospisil withdrew just after he had struck rhythm following some unforced errors at crucial junctures. Wawrinka, the only top-10 player in the fray, won the first set as he went a break up in the fifth game when Pospisil made two errors and double-faulted two times. More...