That is the date that the Under-21 European Championships starts, where Henderson will be representing England.
Negotiations between the two clubs are going well and the Blades are hopeful of a positive conclusion to the talks.
Henderson has already expressed his desire to return to Bramall Lane on loan after a successful season in 2018/19. The Red Devils aren’t prepared to lose the 22-year-old permanently, but are open to another temporary deal.
Henderson believes that impressing on a consistent basis in the Premier League is the best way of earning a senior Three Lions cap. The ‘keeper thinks the most likely way to achieve that is with the Blades.
Gareth Southgate has already said that Henderson is close to that first call-up to his squad. All that remains now is for the move to be confirmed.
Henderson’s impressive season
The Man United stopper arrived in South Yorkshire on a season’s long loan last summer. He went on to play every single minute of their promotion-winning Championship campaign.
This came on the back of helping Shrewsbury Town to a shock League One playoffs finish the previous year.
Not only did Henderson feature for 90 minutes in all 46 league games, but he also kept more clean-sheets than any other goalkeeper in the division. The England Under-21 international ended with 21.
Added to that was the fact that Henderson played a key role in the Blades securing the joint best defensive record in the Championship in 2018/19. The 41 goals they conceded was matched only by seventh-placed Middlesbrough.
Henderson also became a fans’ favourite at Bramall Lane. Despite being a loanee he celebrated victories and promotion as wildly as any of the permanent players. The connection is clearly very strong between the ‘keeper and the supporters.