It's a bizarre signing though in that it doesn't provide any answers to the long-term future of our midfield.
We now have 9 midfielders, with 4 of them having 1 year left. I'm assuming Ox, Milner are certain to leave, and I suspect that the new deal for Keita will not materialise. Now Arthur might give us some short term relief, but do we actually buy him next year if he plays well? He'll be 27 next year and isn't exactly an impressive physical specimen.
This does very little to alleviate the pressure on us in future transfer windows. Just a short term fix that'll help us the way Kabak did briefly.