Jack Singleton in action for Worcester Warriors against Newcastle Falcons. Photo: John Clifton/Reuters

DURBAN – England have called up uncapped Worcester Warriors hooker Jack Singleton as cover for Luke Cowan-Dickie in their squad for the second test against South Africa in Bloemfontein on Saturday.

Cowan-Dickie, who came off the bench for first-choice Jamie George, has a tight hamstring following England's thrilling 42-39 loss to the Springboks at Ellis Park on Saturday, according to officials.

Singleton, 22, could earn his first England cap, but did feature for the side in their 63-45 loss to the Barbarians at Twickenham last month.

The tourists are seeking to snap a four-game losing streak in the second match of the three-test series against the Boks at the weekend.

The final match will be played in Cape Town on June 23. 

England Rugby posted the following on their Twitter account on Monday: