Manager Arsene Wenger says he is baffled by the anxiety among Arsenal fans about the future of key forward Alexis Sanchez.
The Chile international has a year and a half remaining on his contract but has appeared disgruntled at times this season, as the Gunners have endured mixed results.
Sanchez has been linked with a host of top clubs around the continent, including Arsenal's London rivals Chelsea, but Wenger says there is no call for panic.
"He has a one and a half year contract," said the Gunners boss.
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"I don't see what suddenly that debate is about.
"We are professional football people, our job is to perform as long as we are somewhere.
"When I sign a contract, I commit until the last day of my contract. That is what it is to be professional.
"I don't understand this anxiety, one and a half years before the end of a contract. It's absolutely denying what a professional guy is about."
Arsenal continue their quest for a top-four finish at home to West Ham on Wednesday and they will be without defender Laurent Koscielny, who picked up an injury during Sunday's 2-2 draw with Manchester City and was taken off at half-time.
The Gunners are nervously waiting for the results of scans on the French defender's Achilles.
"We lose Koscielny," Wenger said at his Tuesday briefing.
"For how long? I don't know.
"It is serious. If he has ruptured the fibres, then he could be out for a few weeks. If not, he could be available to face Crystal Palace.
"He has a scan today. I can tell you much more tomorrow."
There was better news regarding other members of the Arsenal squad, and Wenger added: "[Alex] Oxlade-Chamberlain and [Aaron] Ramsey have a test today. There is a good chance they are back in the squad.
"Per Mertesacker is available to play. He could be in the squad for tomorrow.
"[Petr] Cech is not available tomorrow. Maybe Monday."