Kenny Jackett praised Conor Chaplin's conduct as speculation persists over his Pompey future.
The Blues boss admitted he's been impressed with Chaplin's attitude as he continues to be linked with a Fratton Park exit.
Coventry remain in pole position to sign the academy product, who made it four goals in pre-season with a late consolation in the 3-2 loss at Stevenage.
Jackett is aware how unsettling transfer talk can be for a player, but there appears to be little sign of a negative impact on Chaplin's game.
The Pompey manager stated there has been no progress in terms of Chaplin leaving, with Jackett keen to have a replacement lined up before he goes.
But he sees his diligent approach to his work in pre-season in difficult conditions as praiseworthy.
Jackett said: 'There's no developments (with Chaplin).
'It's a situation being played out in the press.
'But what I see is a player who has taken to pre-season sharply. That's four goals for him in pre-season. That's very good.
'He's started the pre-season well and I've been pleased with him.
'I have seen the right attitude from him.
'He stated early on it's good to be back in pre-season.
'Once you've had a break you look forward to getting to work and training again.
'That's good for him, and after that he's taken to the games and scoring goals.
'That's a vital thing and he's done it well.'