I'm not sure if he's eligible for a SE since he withdrew from the qualies. Anyway I think he should rest, Mexico has not a great team, and I think if Milos is not tired he won't have problems to win his 2singles despite they play on clay
I thnk he would be, last year when he played Toyko, I asked just for kicks if he made the semis if he'd be eligible for a Shanghai SE even though he wasn't signed up for qualies and was told by smucav he would.
I think Canada wraps up the Mexico tie in the first 3 matches, so Milos will probably only play once Davis Cup week, he can rest then
I'm just kinda really interested in how he'll fare on clay, I guess that's why i want him to play haha