I listened to his audio interview and he gives more details, here's roughly what he says in French:
He means it's already better than one month ago because he couldn't play tennis during the last month. He also wasn't sure he would be able to play the USO, his shoulder was hurting.
So he played a poor match, but at least he isn't in pain after 4 sets, which is positive.
He had an injection 10 days ago because he couldn't lift the arm, he couldn't serve.
He needs to strengthen his shoulder more so he can serve normally. He served well against PHM, but his strength starts to fail him after 90 minutes of play.
The journalist asks him then if he's sometimes considering a retirement because he's been complaining for months now and the pain doesn't seem to get any better.
He answers he didn't feel any pain today. But of course, he considers all the options. He didn't enjoy the match a lot. And there aren't many tournaments left this year.
He'll take his decision at the end of the season. Is he able to play tennis without any pain? Is he still motivated?
If he's still in pain and needs an injection every 3 months, it's a problem for sure. But if he manages to strengthen his shoulder enough so he can play without being in pain, the motivation will come back. It's been very frustrating not being able to play without any pain since the beginning of the year.
There is a fissure on 2 sinews. It's a little bit the same problem as Scud. It also caused a tendinitis.
He needs to do a lot of rehab to get rid of the pain. And then, "we'll see". It's a common problem for tennis players.