The defender has been given some time off by his club after being left out of the England squad for the recent World Cup qualifiers.
The left-back is still finding his way back to full fitness after missing most of last season with a broken leg.
And the England international enjoyed a break from training by signing memorabilia for fans.
Shaw posted the picture above on his personal Instagram account and wrote: “Going through all your letters and post, thanks for the support !! 🔴⚪”
Shaw will be hoping to feature for Manchester United when the Red Devils return to Premier League action with a crunch clash against Liverpool at Anfield on Monday.
The Red Devils are aiming to return to winning ways after the disappointment of their 1-1 draw with Stoke before the international break.
Manchester United won the FA Cup and finished fifth in the Premier League under Louis van Gaal last season.
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