Javier Hernandez
Javier Hernandez left Manchester United and made a switch to Bayer Leverkusen earlier this summerGetty

Chelsea are considering a move in signing Bayer Leverkusen striker Javier Hernandez when the transfer window opens in January to bolster their strike force. The Blues have the services of Deigo Costa, Radamel Falcao and Loic Remy.

Manchester United allowed the Mexican international to spend the 2014/15 campaign on-loan at Real Madrid. After returning to Old Trafford earlier in the summer, he was not involved in Louis van Gaal's plan for this term, which saw him join the Bundesliga outfit.

Since joining Leverkusen, the former United striker has scored 10 goals in all competitions. The Mirror has reported that Chelsea manager Jose Mourinho's side are set to make a shock move in signing Hernandez and want to bring him to the club in the mid-season transfer window.

Costa was instrumental in helping the west London club win the Premier League last season. He had a quick impact and made a switch to Stamford Bridge from Atletico Madrid in the summer of 2014.

The Brazil-born Spanish striker has struggled to replicate last season's form. Falcao joined Chelsea on a season-long loan from AS Monaco after a disappointing loan spell at Manchester United in the 2014-15 Campaign.

Remy has seen his first team opportunities being limited and Mourinho has fielded Costa as the main man to lead his side's attack. Chelsea suffered another defeat at the hands of Stoke City and they now sit on 16th spot on the Premier League table.

Mourinho is targeting a proven goal-scoring striker after Costa's failure this season. The Portuguese tactician believes that Hernandez can help him get goals as Chelsea have struggled to find the back of the net regularly since the start of this campaign.

The Mirror has claimed that a £8.5m ($12.8m) bid would allow Leverkusen to part ways with Hernandez in the January transfer window. The 27-year-old has already played in the Premier League with United and should he join Chelsea, he would be expected to hit the ground in a short period of time.