The Swiss club announced the transfer on Monday, which means a direct blow to Essam Al-Hadari's exit plans in the winter break.

The Egypt guardian pronounced his desire for a new challenge in January, amid the team's poor show in the league so far this season.

Hadari claimed recently that he is considering two offers from French Ligue1 clubs, in addition to reports linking him with Ahli and Zamalek.

Meanwhile, Sion will face second division St.Gallen in the quarter-finals stage of the Swiss Cup, following their 1-0 win over Malley on Sunday.