Javier Hernandez
Javier Hernandez has scored 19 goals for Bayer Leverkusen in all competitions this seasonGetty

Arsenal's hopes of signing Javier Hernandez suffered a blow after Bayer Leverkusen sporting director Rudi Voller admitted that the club are not looking to sell their star player in January. He joined the Bundesliga outfit from Manchester United after their manager Louis van Gaal sanctioned his sale in the summer.

The Mexican international revealed that he left Old Trafford because he wanted to feel happy again. Since joining Leverkusen, he has scored 19 goals from 22 appearances in all competitions so far this term.

Hernandez's form for the German outfit has attracted interest from Arsene Wenger's side. The Independent reported that the Gunners are looking to bring the 27-year-old to the Premier League in the midseason transfer window, which has now been put to bed by Leverkusen's sporting director.

"We are a football club and it is important that we are successful," Voller explained, as quoted by The Independent.

"Chicharito has played a big part in our success so far, through his style of play, through his goals. That's why we brought him here. In the first half of the season, everything has worked out fine.

"It's easy to reject offers when you are in a position in which you don't need to sell. We are in such a position. We will keep the players we want to help us achieve our goals," he added.

Arsenal have the services of Olivier Giroud, Theo Walcott and Danny Welbeck to play up front. The former United man is sidelined with a knee injury and has not featured for the north London side in the 2015/16 season.

In addition to this, Francis Coquelin, Santi Cazorla and Jack Wilshere are also recovering from injuries. Meanwhile, Wenger admitted that he will be looking to bring in at least one player in the ongoing transfer window to strengthen the squad to boost Arsenal's chances of winning the title.

"Ideally, I would like first our injuries to come back. After that, I think at least one [new signing]," Wenger said, as reported by Sky Sports.

"We have still players with a lack of experience in midfield, like [Calum] Chambers, [Alex] Iwobi, [Jeff] Reine-Adelaide, [Joseph] Willock. They can all play, but at the moment, because there is so much at stake, it is very difficult to get the young players to start, but they have the quality," he explained.