By GARY FITZGERALD

Glum: Nick Isiekwe looks on after his early substitution in the first Test
PICTURE: Getty Images

NICK Isiekwe has vowed to learn from his bitter-sweet South African experience and prove to Eddie Jones he does deserve a place in the England squad.
The Saracens star suffered the painful blow of being removed from the battle front after just 36 minutes during the opening Test defeat by the Springboks.
Jones felt the youngster was struggling to make an impact and wanted to change the direction of the game having seen his side throw away a 21-0 lead.
Reminiscent of Luther B...