The semi-finals of Hero Indian Super League 2016 will see Atlético de Kolkata entertain Mumbai City FC and Kerala Blasters FC host Delhi Dynamos FC to kick-start Round 15 of ISL Fantasy 2016. Ahead of the first leg of the semis, we take a look at some players who may not steal the headlines but will be integral to the fortunes of their team nonetheless, as action intensifies between the final 4 of Hero ISL 2016.Milan Singh (Delhi Dynamos FC)The talented midfielder has shown impeccable form for the Lions this season. He is quick, has deft touches and is confident on the ball, always looking to take on defenders. The 24-year-old has scored twice this season and has cemented his spot in the team, making him a certain starter when Delhi take on Kerala Blasters in the semis. Currently on 48 fantasy points, he is 11th on the leaderboard for midfielders and comes with a price tag of Rs 5.7 crore, and that makes him a prudent buy.Krisztian Vadocz (Mumbai City FC)Mumbai City FC have shown good attacking flair this season, and it can be put down to Krisztian Vadocz pulling the strings from the centre of the park. The playmaker has been highly influential for the Mumbaikars with three goals and two Hero-of-the-Match awards to his credit. The Hungarian has also been involved in numerous successful tackles for his side. His high work rate and vision with the ball at his feet makes him virtually indispensable for Mumbai, leaving no doubt that he will have a major play in Mumbai’s semi-final fixtures against Kolkata. With a total of 73 fantasy points to his credit, he is at the top of the leaderboard for midfielders. Available for a price of Rs 8 crore, he can prove to be a judicious addition to your fantasy team.Kervens Belfort (Kerala Blasters FC)The Haitian forward has not only scored crucial goals for his team this season, but has also exhibited a high work ethic, tirelessly running for the men in yellow. Being strong and pacey, he has been difficult to deal with for opposition defenders. He has two goals and an assist to his credit and will be hungry for more when his team faces Delhi in the semis. With 36 fantasy points, he is 14th on the leaderboard for forwards and is available for Rs 7 crore.Stephen Pearson (Atlético de Kolkata)After a slow start to the season, the Kolkata midfielder has come into his own in the closing stages of the league. He has scored vital goals this season and alongside Javi Lara, has led the ATK midfield well. A box-to-box midfielder, his appetite for the game sees him cover most of the field either snapping at opposition attackers’ feet with his robust tackles or trying to create openings for his own team. The Scot has grown into a very influential player for ATK over the course of the season and can be expected to play an important role, come their semi-final tie against Mumbai. He has 33 fantasy points and is available for Rs 7.2 crore.