Suarez's conduct on the pitch has been the subject of scrutiny for the past week after Stoke City manager Tony Pulis called on the Football Association to ban the Uruguayan after an alleged piece of simulation in a Premier League tie on October 7.
FIFA vice-president Jim Boyce subsequently criticised Suarez, who after being defended by manager Brendan Rodgers following Pulis's comments also said he was "not interested" in what Boyce had to say.
But now Koscielny has ensured Suarez's behaviour is up for debate once again.
“Who is the forward I hate to face? Suarez," Koscielny said to L'Equipe. “Last season I didn’t feel too well. It was a match at 12.30pm and I don’t like that schedule.
“He is tiresome to defend against. He cheats. He pulls your shirt, giving small blows. You always want to give him a kick but you have to be careful not to be sent off.
“For example on September 2 against Liverpool, it was the case with Luis Suarez.
“He is a player who likes to dive as soon as there is contact. During a challenge we jostled a bit each other and he fell.
"He started to talk to me in English, to say it was a penalty.”