A short time after his first game at the Emirates Stadium since his return to Arsenal, 35-year-old Sol Campbell was asked about the prospect of playing twice a week to fill in for the injured William Gallas. 'If that's required, I'll have to do something about it and keep on playing really,' Campbell said after the Gunners beat FC Porto 5-0 and advanced to the quarterfinals of the Champions League. Campbell has made five appearances since signing for Arsenal, and the defender even scored an away goal against Porto last month. With Gallas, Arsenal's regular central defender, still troubled by a lingering calf injury, Campbell may be called on by manager Arsene Wenger to play a bigger role in the club's quest for both the Premier League and Champions League titles. 'I'm levelheaded. I'm not going to get carried away or anything. It's great to be back and in this type of environment,' said Campbell, who rejoined Arsenal after a brief stint at League Two club Notts County. 'I relish the moments. I respect the situation I'm in and I'm going to give everything I've got every time I play for Arsenal.' On Tuesday, Campbell received a rapturous reception from the fans at the Emirates. 'It was great. It's a fantastic stadium. It's just good to be out there with the lads,' Campbell said. 'It's nice to be recognized and be loved by the fans.' Wenger has a policy of not bringing back players he has released. But he made an exception for Campbell because the defender was a free agent and Wenger felt he needed more experience at the back. And Campbell brings plenty of experience, last playing for the Gunners in the 2006 Champions League final loss to Barcelona. 'You have to take every game as it comes. But every time you play, you put a good shift in and go from there,' Campbell said. 'Every game is like a cup final now for us, from now until the end of the season.' 