LONDON: Alexis Sanchez's double saw Arsenal return to winning ways in the Premier League with a 2-0 victory over Hull on Saturday in a game dominated by controversial refereeing decisions.
The first goal came via the hand of Sanchez, as he bundled the ball home from close range 11 minutes before halftime, with officials failing to spot the crucial deflection.
A late penalty sealed the win at the Emirates stadium.
The victory was much needed for Arsenal with Arsene Wenger's side moving up to third, having lost its previous two league games and four of its last nine.
Hull has been rejuvenated since the appointment of manager Marco Silva in early January and produced another impressive display as it outplayed Arsenal for significant periods.
Sanchez's first goal was far from the best of his sparkling season but may go down as one of the most crucial.
Mesut Ozil's cross was cleared to the feet of Kieran Gibbs, and the left back's shot was cleared off the line by Andrew Robertson before Sanchez pounced.
The Chile forward's initial effort was well saved by Eldin Jakupovic, only for the ball to bounce into the net off Sanchez's right hand.
The visitors' disappointment with referee Mark Clattenburg intensified in the 54th when Gibbs was given just a yellow card after bringing down Lazar Markovic when the Hull winger was through on goal.
Petr Cech made two important saves from Oumar Niasse as the dangerous Markovic caused Arsenal problems throughout.
Arsenal rarely threatened in the second half but wrapped up the victory in stoppage time as Sanchez got his 17th league goal of the season. Hull midfielder Sam Clucas was sent off as he kept out Lucas Perez's goalbound header with his arm before Sanchez converted to achieve his best ever tally for a Premier League season.
Hull stayed in the relegation zone.