Ronaldo and Rooney spent five years together in Manchester United, where he won the Champions League and three Premier League titles.
And Ronaldo was asked for Rooney before he looked with Manchester United for this week.
Ronaldo is in good shape in Juventus because he has over £ 105 million from his Real Madrid.
But when he asked his ex-boyfriend, he was free and opened the nickname he gave him.
"For me, Wayne Rooney's strength is his mentality and strength," Ronaldo said Goalie films.
"He never stops, always runs, helps the team, is a fantastic team player and scores goals, scored important goals, is fantastic to me.
"He was an English boy, they all loved him, he's a fantastic boy, a fantastic player.
"I told him, between me and my buddies, a pit bull, I remember when he lost the ball, he was such a strong, strong guy, he shot incredible."
But he was happy to have looked at his time at Old Trafford and even revealed that he and Rooney had once reconnected.
Ronaldo added, "Has he achieved many goals I can tell you? I miss playing with him, no one knows the future, maybe we will play together one day."
Rooney moved to America early this year and played MLS football with DC United.
He helped the Washington side reach the playoff, where Columbus Crew lost to penalties.
Rooney is about to return to England for the last time in a friendly match with the United States.
The 33-year-old English recorder with 53 goals to win the 120th cap in memory of November 15 – two years after his last international match against Scotland in November 2016.
"I'm really humbled and extremely excited to play again in England at Wembley," Rooney said in his FA statement.
"I would like to thank Gareth Southgate and The FA for inviting me back and helping me support my Foundation in this process.
"The game for England was the greatest honor of my career – so win my 120th and the final title will be a special moment for me. It is appropriate that the game is against the USA and I hope both fans will have a game."
After his international debut in 2003 as the youngest English player, Rooney surpassed Bobby Charlton as the country's goaltender in 2015.
During his 13-year international career, Rooney Anglii represented three world championships and three European championships.
Rooney, who began his career in Everton, spent 13 games in Manchester United.
After a season in Everton, he moved to the US and joined the D.C. United – who helped with the first playoff match.
He is not expected to be or was a captain of the party against the United States, but will be offered as a substitute for a charity match aimed at raising funding for the Rooney Foundation, which aims to improve the lives of disadvantaged children.
England also plays Croatia in Wembley in the League of Nations on November 18th.