The goals have started to come in, Arsenal are storming forward and he was recently named the club's player of the month.
Viktor Gyökeres had another good day at home against Sunderland. After the hour mark, a benched Gyökeres came on to replace Gabriel Jesus.
Five minutes later he scored to make it 2-0, and with a burst of speed he also made it 3-0 in stoppage time.
The London club tops the Premier League table, nine points ahead of Manchester City, who have one game in hand.
Goalkeeper Melker Ellborg, who was recently signed by Sunderland from Malmö FF, was on the bench.
