The Frenchman lined up for the Blues as they progressed to the quarter-finals of the Europa League after sealing a comprehensive 8-0 aggregate victory over their Ukrainian counterparts.
"He has been able to train after the problem with the back".
Giroud is on a mission to help Maurizio Sarri secure a memorable end to the season after his flawless hat-trick against Dynamo Kiev in the Europa League on Thursday night.
"I am a competitor, I want to play every single game and to be happy on the pitch", he said.
"Giroud with his experience, he needs to set the barrier very, very high which he's done", Walker told Ian Stone's Comedy Breakfast (weekdays 6.30am-10.30am).
"Physically, technically and tactically he is improving".
The Italy forward is one of three players who may struggle to feature, with centre-back Vlad Chiriches and holding midfielder Amadou Diawara also sidelined with injury.
Kyrie Irving has ideal response for Russell Westbrook's incident with Jazz fan
So on Monday night, when he said he heard Keisel yelling to him, "get on [your] knees like you used to", that was no exception. The fan, 45-year-old Shane Keisel , told ESPN that he did not cuss at Westbrook or say anything inappropriate.
"He played very well - better in the second half because we found the spaces and Callum in the spaces is really a very good player", Sarri added.
The race for the top-four in the Premier League has had to go on the backburner this weekend, with the FA Cup taking priority.
Barnard admits that Chelsea are happy not to take on their London rivals in the last eight of the competition, but insisted that no game will be easy at such a late stage of the Europa League.
"I think that's where they get a lot of their goals and of course the first two he scored, dare I say tap ins, he was in the right position at the right time and then obviously the header was exceptional". And second, it means that Napoli are in the final, and I am happy.
The first quarter-final will be played between Napolli and Arsenal.
"You know very well my relationship with the city, with the people. It would be hard to play them with my history with the club".