Chelsea have been backed into 3/1 second-favourites to sign Cristiano Ronaldo before the conclusion of the transfer window.
The 37-year-old has been targeting a move away from Old Trafford after they failed to secure Champions League football for the 2022/23 season.
Some bookmakers were offering odds as big as 14/1 on Monday for Ronaldo to join Chelsea this summer - but the odds shortened drastically across the next 12 hours.
The Blues were linked with a move for the United forward at the beginning of July - although talk related to that potential transfer went quiet as the season approached.
Cristiano Ronaldo - to sign for before 3rd September (via Sky Bet)
- To Stay at Manchester United - 10/11
- Chelsea - 3/1
- Sporting - 7/2
- Atletico Madrid - 8/1
- Inter Milan - 12/1
Odds correct at 1335 BST (16/08/22)
United boss Erik ten Hag had previously expressed his desire to have Ronaldo as part of his squad for the campaign.
However, reports emerged on Tuesday that the mindset may have changed and he is open to the Portugal international departing before the conclusion of the window.
Despite Chelsea being fancied in the market, staying at Manchester United beyond the deadline remains the odds-on favourite.
Ronaldo netted 18 goals from 17.21 xG in the Premier League last season, contributing a further three assists (3.61 xA).
He would also play his part in the Champions League, scoring six from 3.05 xG. However, they exited the competition at the round of 16 stage following an aggregate defeat to Atletico Madrid.
United's transfer window has seen them bring in Tyrell Malacia, Christian Eriksen and Lisandro Martínez but they have been frustrated by what appears to be an unsuccessful pursuit of Barcelona midfielder Frenkie de Jong.
A 4-0 hammering away at Brentford on Saturday - all four goals coming in the first-half - also saw ten Hag's odds slashed from 25/1 to 4/1 to be the next Premier League manager to leave their position.
More from Sporting Life
Safer gambling
We are committed in our support of safer gambling. Recommended bets are advised to over-18s and we strongly encourage readers to wager only what they can afford to lose.
If you are concerned about your gambling, please call the National Gambling Helpline / GamCare on 0808 8020 133.
Further support and information can be found at begambleaware.org and gamblingtherapy.org.