PARIS (AFP) Holders Inter Milan drew 2-2 at competition debutants FC Twente as the Champions League group phase began on Tuesday, while Manchester United were held by Rangers and Barcelona thrashed Panathinaikos. Theo Janssen was the star for Twente, Dutch champions for the first time in their history last season, scoring one and making one to frustrate Rafael Benitezs side on a rain-soaked night in Enschede, eastern Holland. Wesley Sneijder gave the visitors the lead on his return to his homeland but Janssen curled in a stunning free-kick before Diego Militos own goal gave the hosts the lead, only for Samuel Etoo to earn the Italians a point. Benitez, who replaced Jose Mourinho at the Inter helm in the summer, declared himself pleased with his sides Group A opener. The first half was very difficult but we did very well in the second, he said. We controlled the game and Im satisfied with the second half against a difficult team. The result leaves Inter and Twente in a four-way tie with Tottenham Hotspur and Werder Bremen, whose game in north-western Germany also ended in a 2-2 stalemate. Tottenham went 2-0 up inside 20 minutes after a Petri Pasanen own goal and a Peter Crouch header, but the hosts hit back through Hugo Almeida and drew level early in the second period when Marko Marin fired in a low drive. That first 42 minutes or so was the best you could ever see us play, said Tottenham coach Harry Redknapp. We passed the ball and opened them up time and time again. But then we conceded a bad goal, which suddenly bought them back into the game. United made 10 changes for the visit of Rangers and were made to pay as the Scottish champions ground out a goalless draw in their Group C fixture at Old Trafford. The hosts dominated possession but without testing visiting goalkeeper Allan McGregor, and three long-range drives from Irish midfielder Darron Gibson were all they had to show for their efforts. The evening ended on a sour note for the 2008 European champions, who had Ecuador international winger Antonio Valencia stretchered off with a suspected dislocation and fracture to his ankle. Rangers set their stall out to defend and play on the counter-attack, and you have to respect that, said United coach Sir Alex Ferguson. They came knowing what they wanted to do and they did it well. Our final ball wasnt good enough to get three points. Current Spanish league leaders Valencia top Group C after a convincing 4-0 win at Champions League new boys Bursaspor of Turkey. Barcelona began their European campaign in similarly spectacular fashion, smashing five typically well-worked goals past Greek champions Panathinaikos in a 5-1 victory at Camp Nou. The visitors had the temerity to take a 20th-minute lead through former Lyon forward Sidney Govou, but Barca were 3-1 up at the interval thanks to a Lionel Messi brace that sandwiched a close-range David Villa strike. Messi spurned the chance to claim a hat-trick when his tame second-half penalty was saved, but goals from Pedro Rodriguez and Dani Alves in the 78th and 93rd minutes added gloss to the scoreline. We couldnt win on Saturday and knew we had to win tonight, said Pedro, whose side fell to a shock 2-0 defeat at home to newly promoted Hercules in La Liga at the weekend. An 87th-minute goal by Dame NDoye earned FC Copenhagen a 1-0 win at home to Russias Rubin Kazan in the other group game. Lyon, semi-finalists last season, and two-time champions Benfica both got off to winning starts in Group B. The French side prevailed 1-0 at home to Schalke, who had centre-back Benedikt Howedes sent off in the first half after Michel Bastos had put Lyon ahead. Benfica beat Israeli competition debutants Hapoel Tel-Aviv 2-0 in Lisbon, with Brazil centre-back Luisao netting the 5,000th goal in Champions League history. Spurs slip as Bremen fight back to earn draw Tottenham Hotspur let a two-goal lead slip as hosts Werder Bremen fought back to clinch a 2-2 draw in their Champions League opener on Tuesday. Tottenham started strongly and with Wales defender Gareth Bale and Dutch midfielder Rafael van der Vaart causing havoc in the home defence, the Londoners, making their tournament debut, raced into a 2-0 lead after just 18 minutes. But Bremen rallied and two goals in four minutes either side of half-time levelled the scores. Spurs also lost van der Vaart with a calf strain just after the break, but manager Harry Redknapp later said the injury was not serious. I thought we were fantastic for the first 43 minutes, then we conceded a goal just before half-time which gave them a lifeline, they hadnt had a shot before that, said Redknapp. They came back to 2-1 and it gave them belief. The goal came at the right time for them, it changed their attitude and gave them a massive lift. Before that they were struggling to live with us. An own goal from Bremen defender Petri Pasanen and a Peter Crouch header put Spurs ahead before Portugal striker Hugo Almeida pulled one back just prior to the break before Marko Marin hit the equaliser. I constantly asked myself how something like this could happen after we did so well in Bayern, said Werder coach Thomas Schaaf after his side had earned a goalless draw at Bayern Munich last weekend in the Bundesliga. Both sides came into the Group A match at the Weserstadion with injuries. Spurs were without England striker Jermain Defoe and defender Michael Dawson, who both have ligament damage. Bremen were missing Germany centre-back Per Mertesacker, fellow defender Naldo and striker Claudio Pizarro. Spurs took the lead when Bale ran deep on the left flank and squared only for Bremens Pasanen to stab his shot past goalkeeper Tim Wiese on 12 minutes. The English side were hitting Bremen constantly with fast breaks and Spurs went further ahead when a cross from van der Vaart found Crouch who leapt higher than Pasanen to head home on 18 minutes. Tottenham kept up the pressure as Crouch went close again while a rocket shot from Bale forced Wiese into a diving save. With 35 minutes played, Bremen coach Thomas Schaaf toughened up his midfield with Aaron Hunt on for the inexperienced Philipp Bargfrede and the move paid off. Bremen scored just two minutes before half-time with their first real chance when Almeida latched onto a Wesley cross. Van der Vaart made way for Robbie Keane just after the break with a calf strain while the hosts began the second-half with a bang. After Hunt headed over from a corner, Marin fired in a shot from 20 metres out which gave Spurs goalkeeper Cudicini no chance on 47 minutes. In the next round of games, Spurs host Twente on September 29 the same night Bremen are at defending champions Inter Milan.