Javier Hernández ( football player ) scored the 20th goal of his debut season against Petr Cech .
United were superb in the first 45 minutes and made a perfect start when Javier Hernández scored the 20th goal of his debut season after just 36 seconds , slotting home past Petr Cech from Park Ji-Sung 's through ball .
2010–11 Manchester United F.C. season