In a documentary about the Portuguese attacker to be aired on ITV4 in the UK on Tuesday night, Wenger revealed just how close he came to signing for the Gunners.
"He was very close to coming here," Wenger said. "He has a number nine shirt with Ronaldo on the back from Arsenal Football Club.
"What happened was that Carlos Queiroz went to Manchester United and they snapped him away from us because he knew him from Sporting.
"That's what life is about. You give your best but sometimes you might find that people are stronger than you. That can happen as well."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball