Conor McGregor takes to social media as he remembers September 11 attacks

Conor McGregor has paid tribute to first responders on the anniversary of the September 11 attacks.

It was 21 years ago that the United States came under attack with the twins towers and pentagon attacked with nearly 3,000 people losing their lives.

And McGregor took to social media to pay tribute and hail first responders.

McGregor also has been charitable in the past with first responders, donating over $1m from whiskey sales to first responders.

And McGregor said on social media: "Every day and especially on September 11 we must honor our first responders for their bravery and service"

The United States will remember the anniversary of the attacks and with the NFL season kick starting today, there will be a league wide remembrance for the victims of the attack.

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