Hendrie left Scotland to move to West Ham at the end of last season.
Jari Litmanen won the Champions League with the now Manchester United manager while with Ajax in 1995 and has been singing his praises.
The Watford midfielder left Tottenham Hotspur this summer.
The Serbian is currently serving a three-match ban, but was on target for his country during the international break.
Tottenham hero Van der Vaart believes Son will star for Spurs.
Molby suggests Danny Ings should be given a start at Old Trafford.
The former England international left Tottenham Hotspur this summer after a decade at the club.
The Aston Villa midfielder could play for England or the Republic of Ireland.
The Sheffield Wednesday forward left Watford for Yorkshire earlier this month.
Sunderland striker Watmore is hoping to make an impact in the first-team this season.