Inter Milan coach Roberto Mancini said he has nothing to worry about even after a shocking draw at Siena and losing second place to city rivals Milan. "Not much changes for Inter. There are many matches and a whole half-season still to play," Mancini told Inter's website after Sunday's goalless tie. "I'm not discouraged about today's draw because the team did its best, we deserved to win because we created some good scoring chances," he added. Mancini's side moved down to third spot on 39 points after they were held to a goalless draw against Siena as Milan downed Parma 4-3 to go second one point clear. But the former Lazio manager backed his players and stressed they have done their best to win the game. "I have nothing to blame the players for. The strikers did their best but we were unlucky with our shots. Unfortunately the ball didn't go in," he said.