Hes going to be 28 in april. He's practically missed 2 years due to injury and poor form.
At the same time, his poor form might just be down to disillusionment that his dream move with his homeboy ozil has turned to shit and he seems to be the forgotten man along with that Spanish DM.
There's still the issue of his injuries, but at the same time, would it be worth the gamble considering he's coming for free?
Possibly.
What's the point of having an expensive star if he can't play for you?
If he had signed in the summer, we would only now be seeing him playing again and he'd be rusty as hell.
I'd probably play it safe and spend money on a younger player with big potential. Nothing worse than having an RVP sat in sick bay for years, arguing what ifs like we have done so many times, while his wages block any move for a proper alternative.