He notably played for Rangers where he was part of the Ibrox team who earned promotion in 2014 following their demotion to the foot of the Scottish football system.
Born in France he also saw spells in the country with CO Les Ulis, Mende, US Saint-Georges, Sainte-Geneviève Sports, Angers and Paris FC.
[7] Mohsni made his Southend debut and his first game in professional football against Wolverhampton Wanderers in the League Cup on 24 August 2010.
Mohsni had a goal disallowed for offside and hit the crossbar in the game Southend eventually lost 2–1 after extra time.
In the following game at home to Macclesfield Town, Mohsni was picked to start up front following his leveller against Bury and an injury to Barry Corr.
[19] On 20 July he appeared for a West Ham United development side in a 4–1 defeat to Grays Athletic, scoring both a goal and an own-goal.
[24] Mohsni then spent a fortnight on trial with Birmingham City before eventually securing a three-month loan deal with Ipswich Town on 5 October 2012.
[30] Eventually, on 16 February 2013, when Southend were desperately short of players through injury and suspension, particularly centre-backs, Mohsni agreed to play for the Blues,[31] wearing the number 28 shirt.
He was red carded for headbutting striker Chris Martin, and as a result received a two-match ban from the SFA for the first two competitive domestic fixtures of the season.
[39][40] Mohsni returned to the Rangers side after his suspension but found himself in further trouble as a result of an altercation with Hibernian defender Liam Fontaine during Hibs' 3–1 win at Ibrox on 29 September 2014.
[43] On 2 June, the Scottish Football Association revealed that Lee Erwin had only received a yellow card from referee Thomson for his part in the incident.
[45] Mohsni returned to French football in August 2015 when he signed a two-year contract with newly promoted Ligue 1 club Angers SCO.
This prompted Mohsni to set up a Twitter account and post a video to announce that he had not left the club, was still contracted, feeling fit and would be at training the next day.
[54] The following day, Holloway said that he thought the termination had been agreed and that it was not his concern whether the player remained at the club until January,[55] Mohsni would go on to sign for Barnet on 1 December 2020,[56] after making just one appearance off of the bench for Grimsby.
[59] On 8 June 2021, Mohsni was on the verge of signing for NIFL Premiership side Dungannon Swifts, managed by former Rangers teammate Dean Shiels.
The deal was expected to be confirmed and was waiting for international clearance.,[60] however on 3 July 2021 it was announced that Mohsni joined Saudi Arabian second-tier side Al-Rawdah.
[61] On 24 February 2022, Mohsni signed a contract with NIFL Premiership side Dungannon Swifts, following speculation of a move from the previous summer.
[3] He was named in the Tunisia national team's squad for its friendly match against South Korea on 28 May 2014, where he made his international debut in a 1–0 win.
[65] However, Mohsni was an unused substitute in their opening 1–1 draw against Cape Verde and he had to deny reports of quitting the tournament after storming out of the dressing room at full-time.