Would Nico have played against Arsenal? Don't see how he could have prevented an injury to Rodri.They were bought for two reasons:
1. Stopgap due to injuries and Walker leaving. They fulfilled that purpose for Jan/Feb until players returned
2. For the future. None of the the players bought are anywhere near their prime. A player like Nico should have been bought 12 months earlier to help prevent the injury to Rodri