Fine as a stopgap I guess, hope he's on a short term deal.
We absolutely need a striker though, so long as he's better than Sanogo he'd be a solid (and important) signing for the year.
With Chambo and Podolski both out we're basically fucked if Giroud picks up an injury, moving Theo up front will significantly weaken us if it means that Ryo or Gnabry will be coming in to replace him on the wing.