He is not at the top of the Eredivisie goalscoring chart. He is not even the most prolific of his club, a rank occupied by Guus Til (15 goals). However, 22-year-old Luis Sinisterra is the man who must have given Jorge Sampaoli's growing beard the most itching. Twelve goals accompanied by five assists speaks of a player with a major influence on his team's attacking production, but it is again not the figures - at least not those - that...