Ronaldo doesn't know if he'll return to Man United

Cristiano Ronaldo's future at Manchester United was thrown into uncertainty again on Wednesday after he said he didn't know whether he would be playing for the English champions next season.

When asked after United's 2-0 Champions League final defeat to Barcelona if he would be at Old Trafford next season, Ronaldo said: "I don't know."

Real Madrid has been trying to sign the 24-year-old Portugal winger for nearly two seasons and former president Florentino Perez is on the verge of heading the club again.

Perez, who fronted the Spanish club's "galactico" years, has promised to buy big names this offseason.

Ronaldo, a lifelong Madrid fan, has never hid his desire to one day play for a club that manager Alex Ferguson has labeled a mob for its tactics of trying to unsettle Ronaldo.

Perez, responsible for bringing Zinedine Zidane, David Beckham and Ronaldo to Santiago Bernabeu Stadium during his six-year tenure, has said he was ready to spend three years' worth of money on players for next season.

Ronaldo started strong against Barcelona at Stadio Olimpico, nearly scoring after two minutes.

Although he managed six shots on goal, the 24-year-old winger was largely phased out as Barcelona dominated.

"Everything went wrong," Ronaldo said. "We started well in the game but after we didn't do nothing. We didn't control the game and we lost. I think Barcelona played better than us and they deserved to win."

United didn't respond to the challenge, according to Ronaldo. "Everyone expects Manchester to do something in the game and it didn't happen," Ronaldo said. "(We) didn't play fantastic, (we) didn't control the game, we didn't do the right thing, we lost goals and that's what's happened tonight."

Ronaldo refused to comment on his hyped matchup against Lionel Messi, who posted his 38th goal of the season.

"No, the game was between Manchester and Barcelona, it wasn't a duel between anyone in particular," Ronaldo said. Although United didn't defend its European trophy, Ronaldo still finished the season with a league, League Cup and Club World Cup triumphs.

"I'm sure I'm going to play more finals," Ronaldo quipped.