Arsenal manager Arsene Wenger said on Friday he is unlikely to change his stance on player contract renewals but noted the club is hoping to make progress on extensions for Aaron Ramsey and Danny Welbeck.
The clubs want too much more for normal players.
"You have to go one of two ways".
I just try to get him back to full fitness and for me the Europa League and League Cup are important as well.
Arsenal have a clutch of players in their final 12 months, most notably Alexis Sánchez and Mesut Özil, and there would be consternation if Ramsey and Welbeck were to go down the same path. Welbeck is now out until mid-October with a groin injury but he started the season well while Ramsey was impressive in Sunday's 0-0 draw at Chelsea.
In the case of latter, according to Lewis, he is "still very much part of Wenger's first-team plans" at the Emirates Stadium.
Welbeck signed a £70,000-a-week deal in 2014 but his new contract will be worth over £100,000 a week.
"Clubs will soon have to either extend for money you can't afford - or let the player run down his contract".
The two time Premier League victor is set to surpass Ryan Giggs' 633 league games - it will be a new record.
The Welshman is arguably Arsenal's most multifaceted midfielder. The Brazilian is out of contract at the start of next year, and Mourinho sees him as a possible replacement for Michael Carrick, who is expected to retire.
Wenger also outlined the areas in which Lacazette has to improve, most notably the physical nature of football in England.
"I've said many times, it's down to whether he can remain fit", the Frenchman said.
Francis Coquelin (hamstring) and Santi Cazorla (ankle) and Calum Chambers (hip problem) are all missing.