Roger Federer extends his winning run to 10 matches with win over David Ferrer . `` I had a lot of chances to break his serve , '' Ferrer said of his latest Federer defeat . ` World No . 1 qualifies for semifinals at ATP 's season - ending event for 10th time . He ends Paris and Valencia champion Ferrer 's long unbeaten run . Spaniard must now beat Janko ##š to have chance of going through .
Roger Federer extends his winning run to 10 matches with win over David Ferrer . World No . 1 qualifies for semifinals at ATP 's season - ending event for 10th time . He ends Paris and Valencia champion Ferrer 's long unbeaten run . Spaniard must now beat Janko ##š to have chance of going through .