You do know you can vape, without nicotine - just flavoured and no nicotine content ?
As @BlueToff says there’s no isolation required upon return from Spain.
Well as long as he's double vaccinated (which we don't know whether the players are) or he does the 2-day 'test to release' which us normies have to pay for.
I'm sure though, since the players have weekly PCR tests, then that'll be part of the club testing programme.
And all of these trips would have been authorised through the club.