DALLAS, July 5 : Cristiano Ronaldo stressed he will leave football with no regrets but stopped short of admitting the current World Cup would be his last ahead of Portugal's last-16 clash with neighbours Spain in Dallas on Monday.The 41-year-old is playing at a record sixth World Cup and although there are expectations he will have retired from the international scene by the time the next finals are played, he stressed he would end his career on his own terms."I will finish when I choose. You always ask the same question: is this the last one? We will see. I don't want to draw attention to this, the most important thing is to play well tomorrow," Ronaldo told reporters on Sunday. "I'm going to be perfectly honest, regardless of what happens tomorrow, Cristiano is going to be 1000 per cent