Hector Bellerin was severely injured in Arsenal’s 3-1 defeat against league leaders Chelsea.

The Spaniard was involved in a nasty clash with Chelsea defender Marcos Alonso. The Chelsea man jumped to head in the ball for his team’s first goal but in the process, he elbowed Bellerin, who got injured and had to be substituted inside the first 15 minutes.

Chelsea went on to outclass Arsenal and win 3-1, with Eden Hazard and Cesc Fabregas scoring the other goals.

Nothing is going Arsenal’s way after the Gunners suffered two defeats inside 4 days and now they will be without their key defender for a long period of time.

Due to concussion, Bellerin was unaware of the scoreline and told the Arsenal team doctor that he didn’t know what the score is when he got substituted.

Wenger called Alonso’s clash with Bellerin a foul and believes that the Chelsea goal should not have stood.

“I think the first goal was 100 percent a foul. And then of course we put Chelsea in [a position to do] what they like to do, wait for you and counterattack.

“They do that very well, you have to say they are well organised to defend together, very quick on counterattacks.” Wenger said.

“The second goal was a little bit of a killer for us, because from then on it was much more difficult.”