The Swede remains optimistic of dashing the Red Devils' Europa League dreams at Old Trafford following a 1-0 defeat in the first leg on Spanish soil
John Guidetti has already vowed to keep Manchester blue and claims United “were not superior” to Celta Vigo in the first leg of their Europa League semi-final.
The Swedish forward stoked the fires ahead of Thursday’s meeting in Spain by drawing on his former ties to Manchester City.
He said: "[United are] a very good team. Obviously they've got a good manager, a fantastic stadium, and they're one of the favourites to win the Europa League but, as they say, 'Manchester is blue' and that's how it will be when we visit there as well, because we are Celta Vigo and we will try to keep the city blue.