Manchester United's Cristiano Ronaldo rests against the goal during the English Premier League soccer match between Manchester United and Norwich City at Old Trafford stadium in Manchester, England, April 16, 2022. (JON SUPER / AP)

Cristiano Ronaldo could play his first match under new Manchester United manager Erik ten Hag after the Portuguese forward said 'the King' will be available for Sunday's friendly game against Rayo Vallecano.

Cristiano Ronaldo has a year left on his Manchester United contract and new manager Erik ten Ten Hag said earlier this month that he was looking forward to working with the Portugal captain who was their top scorer last season with 24 goals in all competitions

Ronaldo's future at the Old Trafford club has been the subject of intense speculation after British media reported he told the club he wanted to leave so he can play in the Champions League.

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The 37-year-old did not join the squad for their pre-season tour to Thailand and Australia, and he was not included in the squad for United's friendly against Atletico Madrid in Oslo on Saturday.

Ronaldo has been taking to Instagram in recent days to shut down rumours of a move to other clubs and Friday was no different.

"Sunday, the King plays," wrote Ronaldo on a fan page's post that highlighted his absence from the squad.

Manchester United's Cristiano Ronaldo (center) celebrates with his teammates Nemanja Matic (left) and Bruno Fernandes after scoring his side's first goal during the English Premier League soccer match between Manchester United and Chelsea, at Old Trafford Stadium, Manchester, England, April 28, 2022. (DAVE THOMPSON / AP)

Ronaldo has a year left on his United contract and Ten Hag said earlier this month that he was looking forward to working with the Portugal captain who was their top scorer last season with 24 goals in all competitions.

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United, however, finished sixth in the league to miss out on Champions League qualification and will play in the second-tier Europa League this season.