The 32-year-old keeper, who has been at Chelsea for over a decade, has found himself second choice to Courtois this season following the Belgian's return from Atletico Madrid, where he spent three years on loan.
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"I've been at the club for 10 years, the situation is now new to me," he told sport.cz while on international duty with Czech Republic.
"The three opening matches I could not play for the team. I have no reason to panic, pack up and leave. I am a Chelsea player, where I have two more years of contract.
"In football, nothing can be predicted in advance, nothing is ever perfect. A lot of players go on representative duty, yet still many transfer clubs.
"The offer would have to be right for everyone. I do not exclude anything [or] know the answer."
Much had been made of the tussle between Cech and Courtois for the number one jersey, with the latter getting the nod for the opening-game triumph at Burnley.
He was retained for the Leicester City game and kept a clean sheet before conceding three times in Chelsea's nine-goal thriller against Everton on Sunday.
Cech, who signed from Rennes in 2004, is sixth in the club's list of all-time appearance makers.