Mumbai City FC take on Atlético de Kolkata and Delhi Dynamos FC face Kerala Blasters FC in the last legs of the semi-finals of Hero Indian Super League 2016 for Round 16, which is also the penultimate round of ISL Fantasy 2016. For this round, we take a look at those players who may not have been in the headlines of late but can be expected to come good in these upcoming big matches on Tuesday and Wednesday.Sunil Chhetri (Mumbai City FC)The Indian football team captain has had a quiet league by his high standards, but his quality and capabilities are well known. He has a tendency to perform on the big stage and Mumbai’s must-win encounter against Atlético de Kolkata provides the perfect platform. He can turn any game on its head with his individual brilliance, and with marquee man Diego Forlan suspended, the onus is on him to come out and deliver the goods for his team. Available for Rs 10.4 crore, the dynamic forward could prove to be worth his weight in gold on Tuesday.Helder Postiga (Atlético de Kolkata)Kolkata’s marquee player Helder Postiga has shown great touch for the 2014 champions. With two goals and three assists, he has proved to be an important player for Kolkata. Postiga influences his team in a big way and creates numerous chances with his clever play. The 34-year-old may not have been on the scoresheet of late, but is capable of being a game-changer on Tuesday and is available for Rs 11.4 crore.Richard Gadze (Delhi Dynamos FC)Delhi’s 22-year-old forward Richard Gadze has had a major say in his team’s fortunes this season. With five goals and four assists, he has been scoring and providing with equal fervour. Blessed with a quick burst of pace and physically robust, the Ghanaian can be a handful for any defence on his day. He has been a bit quiet of late, but his services will be crucial if Delhi are to overturn a 1-0 deficit against Kerala. Coming at a price of Rs 9.3 crore, he is one of the players who can be banked upon to have a serious impact on the match.Mohammed Rafi (Kerala Blasters FC)Kerala forward Mohammed Rafi has exhibited some good football this season. The 34-year-old has been in the thick of things for his team and has created plenty of opportunities. He has scored a goal and has an assist to his name, but has not managed to wield much of an influence on games of late for the Blasters. However, he is more than capable of making an impact and is due a big performance. Available for Rs 7.8 crore, Rafi can prove to be a smart buy for any fantasy team.