Pierre-Emerick Aubameyang will report back to Chelsea on Monday if the club do not agree a deal for his exit before then.
Chelsea moved back the return dates of Aubameyang, Lukaku and Hakim Ziyech while they attempt to negotiate the sales of all three players.
Lukaku is not expected to return even if Chelsea cannot agree a deal with Inter Milan before Monday, but Aubameyang is preparing to return having seen little significant progress over his future.
Chelsea’s preference to sell Aubameyang for a fee, together with his wages, has so far put off clubs seriously pursuing a deal for the 34-year-old.
Steven Gerrard’s new club in Saudi Arabia, Al-Ettifaq, have shown an interest in Aubameyang but have been focussing their attention on a bid to buy Jordan Henderson.
It has been reported that Al-Ettifaq would want to take Aubameyang on an initial loan and pay 50 per cent of his Chelsea wages.
There has been interest in Aubameyang from Europe, but clubs have so far indicated they are not willing to pay a fee and cover his wages.
Aubameyang has been training hard on his own this week and had been preparing to return to Chelsea before the club pushed back his comeback date.
Chelsea fly to the United States for their pre-season tour on Monday and it is assumed that Aubameyang, Ziyech and Lukaku will not be named in the travelling squad.
That means that Aubameyang will most likely stay behind in London to train at Cobham with other players who do not go on tour if he does return on Monday.
Despite this week rejecting a second offer from Inter Milan, Chelsea remain in negotiations with the Italians over finally agreeing a deal for Lukaku.
It is believed that Roc Nation Sports, who represent Lukaku, have become involved in negotiations to try to help break the impasse.
Chelsea’s co-controlling owner Todd Boehly shares a good relationship with Michael Yormark, who is the president of Roc Nation Sports International.
