As United prepare to learn their Champions League fate with the play-off draw set to take place on Friday morning, the Welshman sees all five possible opponents as a difficult test for the famous club.
"There are no mugs in it at this stage," Giggs said. "It will be difficult for us to qualify, especially with the play-off being early on in the season, but we are ready.
"We are used to being in the Champions League. It wasn't nice last year watching your rivals play in it."