LONDON. Jose Mourinho is starting to feel drained at having to watch his Chelsea team hang on for scrambling victories despite dominating opponents, the manager said after Thursday’s 1-0 Premier League win over Swansea City.The 2012 European champions were always in control at Stamford Bridge but only had Eden Hazard’s first-half goal to show for their superiority."They kill me every game,” said a smiling Mourinho after Chelsea climbed to third in the Premier League, two points behind leaders Arsenal."Every game I am tired at the end. At halftime we should all be relaxed with a comfortable score but time goes on, we didn’t score the second goal and you feel the opponent is keen to risk a bit more and put in a second striker and you are a bit in trouble,” he told a news conference.Mourinho, who has bemoaned the lack of goals from his misfiring strikers all season, said German goalkeeper Gerhard Tremmel was the reason why Chelsea did not produce a more emphatic scoreline.Samuel Eto’o was preferred to Fernando Torres in attack and he was thwarted by Tremmel with the goal gaping after twice being set up by the returning Juan Mata.