Ahead of British football's first participation in the Games since 1960, manager Pearce was quick to pay tribute to Welshman Giggs, competing in his first international tournament.
"He has all the credentials and he's been absolutely fantastic," Pearce told Radio Manchester.
"We've been out in Spain for five or six days, he has the full respect of his team-mates and his form last season was very good for Manchester United.
"We've had him as part of all our coaching meetings and we've been getting great feedback from him on the players.
"To know how the players are feeling is very important."