If the painkillers were on the advice of a good doctor their (his) case would be (is) flimflam.
The dismissal would be a "George Graham" one - for speaking out publicly against the company. No case there either.
Obviously sacking Rose would be to give him what he wants and isn't the correct course of action here. Rotting in the reserves until the end of his contract is - it's just a shame we played him enough this season that he gets to go to the World Cup.
Has Rose actually spoken out against the club here?
“It’s no secret that I’ve been through a testing time at Tottenham this season,”
“It led to me seeing a psychologist and I was diagnosed with depression, which nobody knows about. I had to get away from Tottenham."
“England has been my salvation and I can’t thank the manager and the medical staff enough. It was really hard, and being referred to a doctor and psychologist by the Spurs club doctor helped me massively to cope. I haven’t told my mum or my dad, and they are probably going to be really angry reading this, but I’ve kept it to myself until now.”
“It all stemmed from my injury when I was advised I didn’t need an operation. I don’t know how many tablets I took to try and get fit for Tottenham, how many injections I took trying to get fit for Tottenham. I had cortisone and platelet-rich plasma injections trying to be fit for my club.
“I had to have an operation four months down the line – after all that football I missed, when the team was flying and I was playing really well, the team were playing really well. Seeing the lads beat Arsenal comfortably, seeing them beat Man United comfortably, it was hard. I’m not saying I’ve had worse treatment than anybody else. That’s football. But it was difficult – that was the start of it.”
I don't think there is a valid case to sack a member of staff over these comments and doing so would lead to an unfair dismissal case.