Arsene Wenger was quick to heap praise on Olivier Giroud in the wake of Arsenal's 2-0 win over Aston Villa on Sunday.

The Frenchman converted form the penalty spot early in the victory at Villa Park to take his season tally to 14 goals in 23 appearances in all competitions, prompting positive words from his boss who suggests perhaps his leading scorer does not get the plaudits he deserves.

"I believe he is at the top of his game. He is questioned sometimes but finally the numbers get people to realise he is a good player," said Wenger.

"Olivier has improved technically. His link play is better and when you have the option to go for long balls he is always an interesting option.

"He's not got electric pace, he is more a player who likes to play with his back to goal. He is not spectacular individually but he is a very efficient player for the team. Mentally he is very strong."

Giroud, who scored a match-winning hat-trick at Olympiacos on Wednesday, sent Brad Guzan the wrong way in the eighth minute after Theo Walcott had been brought down by Alan Hutton in the area before Aaron Ramsey added a second late in the first half to send the Gunners top of the Premier League table.