Specially after saying we're not looking to sign anyone in January
1. I think it's a lie when managers say that they were not looking to sign anyone in Jan (especially how we've been struggling in recent weeks). The only reason he said that was because if we didn't get anyone, our fallback excuse would be that we were not looking to buy to begin with.
2. Mourinho has assessed the Zlatan situation and realized that he's not going to be back to his best and he cannot be depended upon to be Lukaku's backup when Lukaku doesn't fire.
3. Sanchez wasn't going to leave until the summer because that's when he would get a hefty signing on bonus for joining on a free which possibly City promised but since there's a huge rift in the dressing room between Sanchez and other players, they want him out now and therefore, Wenger has got to get him out which got us this opportunity.
4. We were looking for cheap alternatives such as Lucas Moura to provide width and be our RW but Sanchez becoming available made us change our plans.
5. Buying Sanchez now would prevent us from making a 90-100m investment in either Griezmann or Dybala.