Ba signed a three-and-a-half year deal with the Blues on Friday after securing a £7m move away from St James’ Park.
The Gunners boss considers the 27-year-old to possess a similar style of play to Olivier Giroud, who Arsenal snapped up from Montpellier last summer.
“Some people say he didn’t manage to pass the medical at Stoke but the last things I heard it’s quite positive for him,” Wenger told Arsenal Player.
“I’m sure Chelsea will have a check on that and if they sign him it is because the problem is not as big as people say.
“I like Demba Ba personally, he is a similar type to Giroud who we just bought. It was one or the other one.”
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