Jean de Villiers’ ‘loose’ knee is the most frightening thing you’ll watch today!

Footage of former Springbok centre Jean de Villiers’ ‘loose’ knee has resurfaced as the British & Irish Lions series fast approaches.

READ | BRITISH & IRISH LIONS SQUAD: BREAKDOWN BY CLUB

Jean de Villiers has a strong claim to being the most unlucky Springbok player of all time as knee, shoulder and jaw injuries blighted his 109-Test career in the green and gold.

He announced his retirement at the end of 2015 having captained the Springboks in 37 Tests, scoring 27 tries.

READ | BRITISH & IRISH LIONS: 16 PLAYERS TO ENJOY THEIR FIRST TOUR OF SA

He remains South Africa’s most experienced centre with 94 caps.

Jean de Villiers, who turned 40 in February, now prefers golf’s fairways and the SuperSport studio as he gives his battered body a well-deserved rest.

READ | BRITISH & IRISH LIONS SQUAD: BREAKDOWN BY COUNTRY

Recently De Villiers gave curious – and shocked – bystanders a glimpse as to the current state of his left knee in the clip below uploaded by former team-mate John Smit.

WARNING! Not for the squeamish!

GALLERY | BRITISH & IRISH LIONS SQUAD IN PICTURES