The forward remains the only out of contract player yet to agree terms with the Blues, after Sean Raggett, Reeco Hackett and Michael Jacobs committed their futures to PO4.
Trio Callum Johnson, Ollie Webber and Paul Downing were not offered fresh terms and also remain without a club, while Shaun Williams has since joined Gillingham.
But with the vast majority of EFL clubs now back for pre-season training, who are the most recognisable free agents still on the lookout for future employers?
We’ve taken a look at the 20 biggest names from the Championship and League One who are yet to find a home.
Here’s what we found.
9. John Marquis
Following his switch from Fratton Park in January, Marquis failed to hit the heights at Lincoln, scoring five goals in 20 outings for the Imps. After leaving Sincil Bank at the end of the campaign, the 30-year-old has since been linked with a move to Charlton. Photo: Robin Jones
10. Andy Carroll
The veteran goalscorer is again without a club after being released by West Brom at the end of the season. The 33-year-old featured for Reading and the Baggies last term, scoring five goals in total. Carroll’s future remains uncertain with no club currently being linked with the former Newcastle and Liverpool striker. Photo: Tony Marshall
11. Massimo Luongo
The central midfielder’s exit from Sheffield Wednesday was confirmed on this week after lengthy contract talks throughout the summer. The Australian international has yet to be linked with a move elsewhere despite an impressive season in the engine room last term. Photo: George Wood
12. Ben Mee
After 11 years with Burnley, the central defender was released by the Clarets after being in a player/coach role at Turf Moor. The 32-year-old has attracted interest from unnamed Premier League clubs as he makes a bid for a return to regular first team football. Photo: Stu Forster