<p>Chelsea reached the Champions League semi-finals for the first time since 2014 despite a 1-0 defeat against Porto in Tuesday's quarter-final second leg in Seville.</p>.<p>Thomas Tuchel's side will play Real Madrid or Liverpool for a place in the final after producing a masterclass in game management to win 2-1 on aggregate.</p>.<p>Real travel to Anfield on Wednesday looking to protect a 3-1 lead from the first leg.</p>.<p>They could do worse than copy Tuchel's tactics as Chelsea smothered Porto with an intelligent defensive approach until Mehdi Taremi's stunning bicycle kick in the last minute of stoppage time.</p>.<p>That sublime strike was out of character with the rest of Porto's display as they laboured to overturn the 2-0 first-leg deficit.</p>.<p>Chelsea have lost only once in 18 matches since Tuchel replaced the sacked Frank Lampard in January and this was another feather in the German's cap.</p>.<p>"We accepted what was needed was a tough fight. It was a very intense game. It's hard to play against them but we defended well and deserved a clean sheet," Tuchel said.</p>.<p>"Part of the performance is to not let the other team perform. Until the lucky shot in the last minute we did not concede any chances.</p>.<p>"We had the better chances. We could not finish it off with a goal so we had to hang in there and the guys did that.</p>.<p>"Overall we deserved to win. It was a tough 180 minutes."</p>.<p>Tuchel had admitted this week was a make or break period for Chelsea.</p>.<p>They passed the first test with ease and can now focus on Saturday's FA Cup semi-final against Premier League leaders Manchester City at Wembley.</p>.<p>The Blues are fifth in the Premier League as they chase a top-four finish, meaning they might need to win the Champions League for the first time since 2012 if they are to qualify for next season's competition.</p>.<p>Led by the astute Tuchel, who took Paris Saint-Germain to the Champions League final last season, that lofty ambition can't be ruled out.</p>.<p>Tuchel this week said he wouldn't want to fight Antonio Rudiger or Cesar Azpilicueta, such is the ferocious will to win coursing through Chelsea's most vocal players.</p>.<p>Both defenders lived up to Tuchel's billing as they fought tooth and nail to keep Porto at bay in a niggly clash.</p>.<p>Chelsea goalkeeper Edouard Mendy gifted Porto a golden opportunity for a priceless early goal when his miscued pass went straight to Jesus Corona inside the penalty area.</p>.<p>But Corona couldn't keep his composure and Jorginho did enough to ensure the shot flashed wide.</p>.<p>Mendy's blunder was forced in part by the relentless pressing that epitomised Porto's frenetic start, but Chelsea matched their work rate as the foul count rose for both teams.</p>.<p>N'Golo Kante was fit to start for Chelsea after a hamstring problem and the France midfielder teed up a good chance for Kai Havertz, whose limp finish failed to match the quality of his team-mate's incisive raid.</p>.<p>Having already wasted one good chance, Corona's profligacy let Porto down again when he lashed hurriedly over from 12 yards after Ben Chilwell misjudged Otavio's high ball.</p>.<p>Chelsea had never lost a knockout tie in Europe after winning the first leg away from home and that record remained pristine as Porto ran out of steam in the second half.</p>.<p>Chilwell's cross presented Christian Pulisic with a clear sight of goal, but the winger couldn't get enough power on his wayward volley.</p>.<p>Desperately short of a cutting edge, it took Porto until the 68th minute for their first effort on target as Taremi's header from Corona's cross forced Mendy to save.</p>.<p>Taremi's eye-catching strike with seconds left came far too late for a dramatic finale, with tempers flaring in a heated exchange involving Rudiger and several Porto players after the final whistle.</p>
<p>Chelsea reached the Champions League semi-finals for the first time since 2014 despite a 1-0 defeat against Porto in Tuesday's quarter-final second leg in Seville.</p>.<p>Thomas Tuchel's side will play Real Madrid or Liverpool for a place in the final after producing a masterclass in game management to win 2-1 on aggregate.</p>.<p>Real travel to Anfield on Wednesday looking to protect a 3-1 lead from the first leg.</p>.<p>They could do worse than copy Tuchel's tactics as Chelsea smothered Porto with an intelligent defensive approach until Mehdi Taremi's stunning bicycle kick in the last minute of stoppage time.</p>.<p>That sublime strike was out of character with the rest of Porto's display as they laboured to overturn the 2-0 first-leg deficit.</p>.<p>Chelsea have lost only once in 18 matches since Tuchel replaced the sacked Frank Lampard in January and this was another feather in the German's cap.</p>.<p>"We accepted what was needed was a tough fight. It was a very intense game. It's hard to play against them but we defended well and deserved a clean sheet," Tuchel said.</p>.<p>"Part of the performance is to not let the other team perform. Until the lucky shot in the last minute we did not concede any chances.</p>.<p>"We had the better chances. We could not finish it off with a goal so we had to hang in there and the guys did that.</p>.<p>"Overall we deserved to win. It was a tough 180 minutes."</p>.<p>Tuchel had admitted this week was a make or break period for Chelsea.</p>.<p>They passed the first test with ease and can now focus on Saturday's FA Cup semi-final against Premier League leaders Manchester City at Wembley.</p>.<p>The Blues are fifth in the Premier League as they chase a top-four finish, meaning they might need to win the Champions League for the first time since 2012 if they are to qualify for next season's competition.</p>.<p>Led by the astute Tuchel, who took Paris Saint-Germain to the Champions League final last season, that lofty ambition can't be ruled out.</p>.<p>Tuchel this week said he wouldn't want to fight Antonio Rudiger or Cesar Azpilicueta, such is the ferocious will to win coursing through Chelsea's most vocal players.</p>.<p>Both defenders lived up to Tuchel's billing as they fought tooth and nail to keep Porto at bay in a niggly clash.</p>.<p>Chelsea goalkeeper Edouard Mendy gifted Porto a golden opportunity for a priceless early goal when his miscued pass went straight to Jesus Corona inside the penalty area.</p>.<p>But Corona couldn't keep his composure and Jorginho did enough to ensure the shot flashed wide.</p>.<p>Mendy's blunder was forced in part by the relentless pressing that epitomised Porto's frenetic start, but Chelsea matched their work rate as the foul count rose for both teams.</p>.<p>N'Golo Kante was fit to start for Chelsea after a hamstring problem and the France midfielder teed up a good chance for Kai Havertz, whose limp finish failed to match the quality of his team-mate's incisive raid.</p>.<p>Having already wasted one good chance, Corona's profligacy let Porto down again when he lashed hurriedly over from 12 yards after Ben Chilwell misjudged Otavio's high ball.</p>.<p>Chelsea had never lost a knockout tie in Europe after winning the first leg away from home and that record remained pristine as Porto ran out of steam in the second half.</p>.<p>Chilwell's cross presented Christian Pulisic with a clear sight of goal, but the winger couldn't get enough power on his wayward volley.</p>.<p>Desperately short of a cutting edge, it took Porto until the 68th minute for their first effort on target as Taremi's header from Corona's cross forced Mendy to save.</p>.<p>Taremi's eye-catching strike with seconds left came far too late for a dramatic finale, with tempers flaring in a heated exchange involving Rudiger and several Porto players after the final whistle.</p>