Summary:
Cristiano Ronaldo has been pictured giving a thumbs up as he trained with Real Madrid in the United States.

Full article:
By . Rajvir Rai . Follow @@R_Rai . It is the sight all Real Madrid fans want to see: Cristiano Ronaldo up and running again. The Portuguese midfielder was out training on Friday morning and was pictured giving the thumbs up. The 29-year-old sat out Real's 1-0 defeat to Roma on Thursday but will no doubt be desperate to play against former club Manchester United on Saturday. VIDEO Scroll down for Cristiano Ronaldo enjoys rub-down from Real Madrid physio... a lot! Thumbs up: But doubts remain over Cristiano Ronaldo's fitness ahead of Saturday's game against United . Full tilt: Cristiano Ronaldo goes through his paces at the Eastern Michigan University on Friday morning . Raring to go? Cristiano Ronaldo sat out Real Madrid's defeat to Roma earlier this week . Stretch to it: Cristiano Ronaldo is back training with Real Madrid after the World Cup . Ronaldo has trained with Real's squad all week having joined them on Monday after being given time off after the World Cup. But whether he can prove his fitness in . time to face United remains to be seen. Ronaldo did, however, look sharp as he went through his . paces at the Eastern Michigan University. Real face Manchester United in the International Champions Cup at Michigan Stadium on Saturday. VIDEO Ronaldo's stunning highlights playing for Portugal .