Manchester United's goalkeeper Dean Henderson will not be able to attend their training camp in Scotland because he is still recovering from the coronavirus.Henderson was positive for HIV a few weeks back, but he is still feeling unwell so he has not traveled with the rest this week.On Monday, a club statement stated that Dean Henderson would not attend Manchester United's Scotland training camp because of his ongoing recovery from prolonged fatigue following a COVID-19-related infection three weeks prior.Image: David de Gea, back with United after his post-Euro 2020 summer vacation"He is expected back in training soon."The 24-year old was forced to leave England's Euro 2020 squad due to a hip problem. However, he has now fully recovered.At this point, it is not clear if the United academy product who appeared in 26 games last season will be fit enough for the Premier League match against Leeds on August 14.David de Gea, who was a challenger to Henderson for the No. 1 goalkeeper slot last season, has rejoined the rest of the Scotland squad following his extended summer vacation due to his participation in Euro 2020 in Spain.Image: Tom Heaton has taken a vow to challenge Dean Henderson and David de Gea, current Manchester United goalkeepers, for the No. 1 shirtDuring this time, United's new signings Tom Heaton (new signing) and Lee Grant (pre-season friendlies) have been making appearances between the sticks.United will play Everton at Old Trafford Saturday in their final pre-season friendly.