KOLKATA: Mohun Bagan regular Katsumi Yusa will return to the city this season - but in an East Bengal shirt.Confirming the development, East Bengal club sources said on Tuesday that the Japanese playmaker has agreed to play for the red-and-gold brigade in the I-League. He is expected to join Khalid Jamil's side in October.Having roped in highly-acclaimed physical trainer Djair Miranda Garcia, Katsumi is the second high-profile member of the Mohun Bagan squad that East Bengal have acquired this season.Of the three foreigners who played for Mohun Bagan last season, only Haitian international Sony Norde has been retained. While Darryl Duffy returned to Scotland to join St Mirren FC, Katsumi — who played for the green and maroons for four straight seasons — was released after the Federation Cup, which was held in Cuttack last May.The Japanese had forged a highly effective partnership with Norde during his stint with Mohun Bagan, helping them win the I-League in 2015 and Federation Cup the following year.Although East Bengal sounded him out immediately after the Federation Cup and offered him a contract, Katsumi, it was learnt, decided to bide time, hoping to play in the Indian Super League. In the third edition of ISL, he had played for North-East United FC on loan from Mohun Bagan.However, with ISL sides forced to build teams with a reduced foreign-player cap, Katsumi kept other options open.East Bengal convinced him to join them after getting the go-ahead from coach Jamil.This year, the AIFF has allowed I-League clubs to register six foreign players, two more than before. Of the six, at least two players will have to be from an AFC member association.East Bengal have thus completed their Asian player quota for the I-League, having snapped up Syrian midfielder Mahmoud Al Amna from I-League champions Aizawl FC at the start of this season.