I-League club Mumbai FC is reportedly closing in on signing Indian players Arata Izumi, Reagan Singh, Munmun Lugun and Seityasen Singh, according to sources.

Coach Santosh Kashyap, who took over from Khalid Jamil, is keen on building an Indian core in his Mumbai FC team, and has identified the four players as key figures to execute his plan. Japenese-born Izumi, a seasoned campaigner in the I-League, played for Mumbai FC last season as well, on loan from Indian Super League (ISL) side Atletico de Kolkata. The 34-year-old, who moved to FC Pune City along with manager Antonio Habas this season, has an eye for goals and will be a calm presence in the midfield for Mumbai.

Defender Reagan Singh shot into limelight after his sizzling performances for Royal Wahingdoh in the 2014-15 I-League season. The Manipur-born centre-back then went on to earn a place in John Abraham-owned NorthEast United's squad for the 2015 season. At 25, the defender is in his prime age, and will bring stability to the Mumbai back-line.

Left-back Munmun Lugun, who was part of Mumbai City FC's squad this ISL season, is also being eyed by the Mumbai-based club. Though he did not get any playing time in Mumbai City's run to the ISL semi-final, the 23-year-old full-back is a popular name amongst Indian football fans, after he impressed at a young age in his stints at United Sikkim and Rangdajied United.

Seityasen Singh, another product of former I-League club Royal Wahingdoh, is a pacy winger who can operate on both the flanks. The 24-year-old midfielder from Manipur scored two goals in six apperances for Nelo Vingada's NorthEast United this ISL season and will be a constant attacking threat in Kashyap's team.

Interestingly, Mumbai has opted to invest in young flair players this season, a contrast to the defensive style often used by the team under former coach Jamil. The club is expected to confirm the signings in the coming few days.