Alexis Sanchez was on fire for Arsenal during Saturday evening's 5-1 thrashing of West Ham.
A 14-minute hat-trick at the Olympic Stadium capped a wonderful performance from the Chilean, who also provided the assist for Mesut Ozil's opener.
It took Sanchez 72 minutes to get on the scoresheet but it was worth the wait. From Skhodran Mustafi's pass, he turned Arthur Masuaku and drove into the penalty area before firing past Darren Randolph.
The 27-year-old had his second eight minutes later when he found the bottom-left corner from the edge of the 18-yard box.
And six minutes after that, Sanchez completed his hat-trick by dinking the ball over Randolph after being played through by Alex Oxlade-Chamberlain.
Arsenal now sit second in the Premier League as a result of Sanchez's hat-trick heroics, the Chile international joint-top goalscorer with Diego Costa on 11 goals.
Sanchez was inevitably the focus of Gary Lineker and Alan Shearer's analysis on Match of the Day, with Lineker asking the former striker whether Sanchez is "world class".
Shearer has previously claimed Sergio Aguero is the only world-class player in the Premier League, though he later admitted Ozil and Kevin De Bruyne might be too.
However, when asked for his take on Sanchez, Shearer refused to call the Arsenal striker world class and explained what he must do to achieve that status (see below).
"Arsenal are a much better team this year because of [Sanchez]," he said, "and I would ask Arsene Wenger, if he is world class, why has it taken him two years to play him centre forward?
"Because I think that's what Arsenal have been missing in the last couple of years; why they haven't won the title.
"They're in with a great chance if he can stay fit and in that form."
Lineker then responded by saying: "Alan, world class?" to which Shearer replied: "It depends on what you define world class, Gary.
"If he keeps on that ability and if he wins the title for Arsenal this season, then yes."
It's simple: Sanchez must win the Premier League with Arsenal to be world class in Shearer's eyes.
Wenger certainly believes Sanchez is of that calibre, saying after the game: "I think he likes the position (striker).
"When it comes off and he walks off with the ball under his arm it's a good feeling and I hope there is more to come.
"The leading strikers in world football at the moment are South American. He has all the ingredients to be a top-class striker and he showed that again.
"He's quick, he can dribble, and he has the killer instinct."News Now - Sport News