Cristiano Ronaldo is worried about Manchester United's transfer strategy this summer, according to Spanish reports.
While last season's Premier League pace-setters Manchester City and Liverpool have spent big on Erling Haaland and Darwin Nunez respectively, new United boss Erik ten Hag is yet to make his first signing.
The Red Devils have been heavily linked with midfielders Frenkie de Jong and Christian Eriksen but with no one signing on yet, a report in Spanish outlet AS states Ronaldo is increasingly concerned that United's rivals are pulling away once again.
The report - from AS' Manu Sainz, who is close to Ronaldo's agent Jorge Mondes - details that the 37-year-old is 'worried' about United's lack of activity so far.
It adds that the Portugal legend was 'determined' to see out the final year of his contract at Old Trafford, but now has 'doubts' as a result of United's inactivity.
United are currently still around £12m short of Barcelona's £72m valuation for Holland international De Jong, while talks over a move for Eriksen have gone cold in recent weeks.
United CEO Richard Arnold was caught on camera talking to fans about the club's finances and insisted that the money is there to strengthen the first-team squad this summer.
Arsenal and Tottenham have also strengthened in recent weeks with the midfield signings of Fabio Vieira and Yves Bissouma respectively.
Ronaldo rejoined United last summer on a two-year deal and was the club's top scorer with 24 goals in all competitions.
But he was part of a forgettable season for United, who finished sixth in the Premier League and did not progress to the latter stages of any of the cup competitions.