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.
5. Gary Cahill
The ex-England international made 22 outings for Bournemouth last season but was used as back-up as the Cherries won promotion back to the Premier League. Now at 36 years of age, the defender has yet to be linked with a move elsewhere this summer. Photo: Alex Pantling
6. Aiden O'Brien
O’Brien was absent from Pompey’s return to training this week as he remains in negotiations with the club. The 28-year-old netted five goals in 17 outings following his January move and has stated his desire to extend his stay at Fratton Park, but is yet to sign on the dotted line. Photo: Jason Brown
7. Luke Freeman
Freeman’s reported £5m move to Sheffield United in 2019 broke a then club record. However, injuries have affected his time with the Blades and restricted his loan move at Millwall to one appearance at the end of last term. Despite struggling to stay fit for a prolonged period of time, reports suggest Luton are keen to strike a deal for the 30-year-old. Photo: Justin Setterfield
8. Scott Sinclair
The 33-year-old was one of a number of players who fell victim to Ryan Lowe’s clear out at Preston this summer. The former Celtic favourite never hit the heights at Deepdale - scoring 14 times in 85 outings for the Lilywhites. Despite impressing in Scotland, Sinclair is yet to be linked with a club as he looks to prolong his career. Photo: Alex Livesey