Enzo Maresca has confirmed that Conor Gallagher has returned to Chelsea, but the midfielder is currently training alone and will not be part of Sunday's matchday squad after his move to Atletico Madrid collapsed.
Gallagher had been on the verge of joining the Spanish club this summer, even traveling to Madrid, but complications surrounding Samu Omorodion's proposed transfer to Chelsea halted the deal at the last minute.
As a result, the midfielder found himself on a flight back to England with his future unclear. However, both sides are said to be keen on getting the deal over the line before the transfer window closes.