Krzysztof Piatek struck again to rescue a 2-1 win for AC Milan at bottom club Chievo on Saturday, keeping their Champions League push firmly on track, but the Polish striker was accused of scoring with a 'kung fu' kick.

Piatek joined Milan from Genoa in January and has now scored eight goals in nine matches, as the club notched up a fifth straight league win to remain unbeaten since before Christmas.

Returning from injury, Lucas Biglia opened with a curling free kick after 31 minutes in Verona. It was just his second goal for Milan and first since February last year.

Finnish midfielder Perparim Hetemaj got his head to the end of Leris cross to pull the hosts level four minutes before the break.

But once again Piatek proved crucial, scoring the winner after 57 minutes in controversial circumstances.

The 23-year-old met Samu Castillejo's header amid a goalmouth scramble, during which the Pole looked to have struck a Chievo player while attempting an overhead kick.

A VAR review confirmed the goal to the fury of Chievo coach Domenico Di Carlo.

"I don't want excuses but in the last six matches all the VAR decisions have gone against us," said Di Carlo, whose side have won just one of 27 games played.

"Piatek's move on (Fabio) Depaoli wasn't football, it's kung fu.

"You can write the headline: 'Chievo beaten by a kung fu kick.'"

Piatek joins Juventus star Cristiano Ronaldo and Sampdoria's Fabio Quagliarella on top of the Serie A scorers' chart with 19 goals this season.

Milan consolidate third position to move five points behind second-placed Napoli who travel to Sassuolo on Sunday.

However, coach Gennaro Gattuso was sent to the stands for arguing on the sidelines with Chievo midfielder Riccardo Meggiorini in the first-half and now risks a suspension for the derby.