The West Indies today replaced injured batsman Lendl Simmons with left-arm spinner Nikita Miller for the remainder of the ODI series against India. "There were chances that Simmons will recover from back injury but we realised that he had to be flown back home for further treatment. Nikita is on his way from Sri Lanka to replace Simmons," said West Indies team manager Richie Richardson ahead of the fourth ODI here tomorrow.