Coco Gauff reaches French Open final at 18 and calls for end to gun violence

• American crushes Italy's Martina Trevisan in semi-final
• US has been hit by wave of mass shootings in recent weeks

Coco Gauff had matters beyond tennis on her mind when she reached the French Open final on Thursday at the age of just 18.

After crushing Italy's Martina Trevisan 6-3, 6-1 in their semi-final to become the youngest French Open finalist in 21 years, the American wrote Peace End Gun Violence" on the lens of an on-court camera.