<a href="http://www.thenational.ae/sport/fifa-under-17-world-cup/argentina-coach-calm-despite-facing-former-charges-mexico-in-u17-world-cup-semi-finals">Argentina face Mexico</a> and <a href="http://www.thenational.ae/sport/20131104/swedes-hold-no-fear-for-high-flying-nigerians-in-u17-semi-finals">Sweden tackle Nigeria</a> tonight to determine <a href="http://www.thenational.ae/sport/fifa-under-17-world-cup/surprise-package-sweden-not-ready-for-u17-dream-to-end-just-yet">which two countries</a> contest the final of the <a href="http://www.thenational.ae/sport/fifa-under-17-world-cup">U17 World Cup</a>, at Mohammed bin Zayed Stadium in Abu Dhabi on Friday. <a href="https://twitter.com/weejinmac">John McAuley</a> provides four players to keep an eye on: 1. <strong>Kelechi Iheanacho, Nigeria:</strong> The tournament's second-leading scorer has filled the void left by Success Isaac, the team's injured striker. Four goals in a whirlwind performance in the opener against Mexico confirmed his talent – he added another against Iran – yet in truth he has been scoring goals consistently at this level for some time. Iheanacho is more than a goalscorer, though, linking play between midfield and attack. Sweden may struggle to shackle him. 2. <strong>Valmir Berisha, Sweden: </strong>Dubbed, perhaps unfairly, the "new Ibrahimovic", the Sweden forward has been the spearhead to his side's surprise journey to the semi-finals. With four goals, Berisha stands out in a team very much built on the collective, and has formed a dangerous partnership with front pair Elias Andersson and Gustav Engval. Comparisons with the Sweden senior side's star do not weigh heavily on Berisha, who readily admits to modelling his game on Ibrahimovic's playing style. 3. <strong>Sebastian Driussi, Argentina: </strong>Marked before the tournament as a potential star, the River Plate frontman failed to excite during the group stage, despite scoring in the opener against Iran. However, a goal in the last-16 win against Tunisia seemingly sparked him to life, with Humberto Grondona, the Argentina coach, saying Driussi had finally arrived. A lively presence at the top of Argentina's attack, Mexico will need to monitor him closely throughout. 4. <strong>Alejandro Diaz, Mexico: </strong>If his 25-yard rocket in the last-16 triumph against Italy is any indication, then Argentina would best deny the Mexico forward any shooting opportunities. Diaz, described as a "wonderful striker" by coach Raul Gutierrez, requires teammates to create space for him, but given the chance, he rarely lets it pass. His cool head was evident in a quarter-final penalty shoot-out with Brazil, when Diaz twice succeeded, including the kick that clinched a date with Argentina.