Cristiano Ronaldo signs off his first season in Italy with Juventus on Sunday when the Serie A champions face Sampdoria. The Portuguese forward took his mind off football on Thursday as he attended practice at the Monaco Grand Prix. The 34 year old walked part of the track and watched the action as the Formula One teams prepare to take part in the sixth round of the season on Sunday in Monte Carlo. He also spent time in the Mercedes-GP garage and met five-time world champion Lewis Hamilton. Ronaldo later thanked the Briton, who leads this season's F1 standings, on social media. He tweeted: "Always nice to see you Bro."