The ATP has dropped its investigation into Tunisian player Malek Jaziri's withdrawal ahead of a possible match against an Israeli opponent.

The ATP says it is "fully satisfied" that Jaziri withdrew because of a legitimate injury and "this matter is considered closed."

Jaziri retired from his first-round match against Denis Istomin after winning the first set 6-3 at the Open Sud de France in Montpelier last week, citing an elbow injury. Had Jaziri beaten Istomin, he would have played Israel's Dudi Sela in the next round.

The ATP decided to investigate because of a previous incident in which Tunisia's tennis federation ordered Jaziri to withdraw from a match against an Israeli opponent in 2013.

The ATP says it spoke with Jaziri and tournament medical staff in Montpelier.