LEIGH GRIFFITHS has broken his silence following Neil Lennon's decision to leave him out of Celtic's pre-season squad.

Scotland international Griffiths did not travel with the Hoops to their training camp in Loughborough and will now miss out on matches against Lyon, Nice and PSG due to fitness issues meaning he was left to work on his own at Lennoxtown.

And following Lennon's decision to leave the 29-year-old at home he has taken to Instagram to share his thoughts.

He shared Rocky Balboa's quote: "Let me tell you something you already know. The world ain't all sunshine and rainbows.

"It's a very mean and nasty place and I don't care how tough you are it will beat you to your knees and keep you there permanently if you let it.

HeraldScotland:

"You, me, or nobody is gonna hit as hard as life. But it ain't about how hard ya hit. It's about how hard you can get hit and keep moving forward.

"How much you can take and keep moving forward. That's how winning is done!"

Alongside the quote he added: "So many knockdowns, I'll rise up and keep challenging those who doubt."