Manchester United are hopeful of finally striking a deal for Aaron Wan-Bissaka after further talks with Crystal Palace on Monday.

And Ole Gunnar Solskjaer, the United manager, is eager for the club to now push ahead with a move for Sporting Lisbon midfielder Bruno Fernandes.

Solskjaer wanted the majority of United’s transfer business wrapped up by the time the first-team squad returns for pre-season training next Monday but Daniel James, the Wales winger signed from Swansea City for a projected £18 million, is the only arrival to date.

Yet plenty of United’s Premier League and European rivals are also having to bide their time this summer in what is proving a complex transfer market as clubs struggle to move on players in order to free up cash.

United hope to make Wan-Bissaka their second summer signing and made a third bid for the player over the weekend.

That offer still fell short of the £50m Palace are seeking for the defender but talks resumed in London on Monday between officials from the south London club and Matt Judge, United’s head of corporate development who handles transfer negotiations.

Ed Woodward met Crystal Palace, along with Matt Judge, on Monday afternoon credit: Getty Images

Palace had grown increasingly frustrated by United’s handling of an increasingly protracted situation and told their Manchester counterparts over the weekend to effectively put up or shut up. For United’s part, they feel the delay is an inevitable byproduct of what has proven a difficult negotiation.

England’s Under-21 team played their final Euro 2019 Group C match against Croatia on Monday night and Wan-Bissaka is due to return home this week, eager to complete a move to Old Trafford.

United had been hoping to secure Wan-Bissaka for a smaller initial fee than Palace were pursuing but with a series of add-ons to take the deal to £50m.

But Palace have been unimpressed by some of the performance-related clauses proposed by United.

One of those is thought to have included an additional sum payable if United won the Champions League or Wan-Bissaka made 25 Champions League appearances for United, who have not qualified for the competition next season.

The earliest point such a clause could be triggered would be the end of the 2021/22 campaign, and that would be seen as wildly optimistic given that it would necessitate at least a semi-final appearance one season and a final appearance in the other.

Matteo Darmian is one of several players who could leave Old Trafford this summer credit: Getty Images

Palace are also hoping for the removal of a sell-on clause in Wilfried Zaha’s contract, which was negotiated when the winger returned to Selhurst Park from United in 2015, as they seek an overall package closer to £60m with add-ons.

Should United agree to it, the removal of the Zaha clause could be worth around £10m down the line if the player is sold, although if Wan-Bissaka leaves, Palace will not countenance Zaha’s sale this summer.

United are hoping to offset part of the cost of Wan-Bissaka by selling Italy right-back Matteo Darmian, who is about to enter the final year of his contract at Old Trafford. Juventus are interested in Darmian as a potential replacement for Joao Cancelo, the Portugal right-back, who is expected to move to Manchester City. One sticking point is that City need to find a buyer for their Brazil right-back, Danilo.

Solskjaer would like to sign two midfielders, even if Paul Pogba - a target for Real Madrid and Juventus - stays and the manager is keen on bringing in Fernandes. Fernandes’ agent, Miguel Pinho, held talks with Tottenham Hotspur last week but Sporting are awaiting United’s next move. Newcastle’s Sean Longstaff is also on United’s radar.