Centre-back Gerson Vieira or Gerson as he is popularly known is sure to bring an abundance of energy and freshen up the Mumbai City FC backline. The 23-year-old defender began his footballing journey aged eight and graduated from Brazil's Gremio academy in 2012. Loan spells at Oeste, Red Bull Brasil and Atenas soon followed. He has worn national colours for various age groups since 2006. Champion of Mediterranean International Cup held in Barcelona, Gerson has also been a winner of the South American under-15 and under-17 Championships. During the 2009 Sendai Cup in Japan, Gerson was declared the tournament's best player. His leadership qualities have also seen him being handed the captaincy for Brazil in the under-15 and under-17 age groups.