Opening batsman Tom Westley will make his Test debut against South Africa at the Oval for the third test, as England named a 13-man squad on Thursday.

Gary Ballance has been ruled out of the third Test following a fracture at his left index finger, Westley has been told he will get Ballance?s spot in the side,

Meanwhile, another batsman, Dawid Malan?s debut is hinging on whether England opts to play the extra batsman.

Westley, has been a heavy domestic run-scorer at Essex over the past three seasons, is a right-hander and would thus break up England?s left-hand dominated lineup.

The 28-year-old already boasts a first-class century against South Africa from No3 this summer, in this unbeaten 106 for the Lions at New Road.

While, Malan, the Middlesex left-hander, has averaged in the mid-40s over the past four Championship seasons and impressed Bayliss when making his Twenty20 debut against South Africa in June and striking a 48-ball 78 against an attack that included two of South Africa?s Test attack in Morne Morkel and Chris Morris.

Bowling-wise, England have stuck with the same players from the first two Tests although Toby Roland-Jones, the Middlesex right-armer, could make his debut in place of Mark Wood, who has one wicket across four innings and faded a touch at Trent Bridge.

Earlier, former captain Kevin Pietersen criticised England´s top-order batsmen after South Africa won by a massive 340 runs against home side at Nottingham to square the series

"They picked a poor test-match team," Pietersen told Sky Sports. "I know they won at Lord´s but that was the brilliance of Joe Root. There´s individuals that are brilliant, but the collective don´t fire as much as they should and there are some holes in that batting order."

Root, who replaced Alastair Cook as England´s Test captain, scored a splendid 190 to set up England´s win.

"You cannot have a top three that bat as the top three bat or has poor technique, you cannot have that," said the 37-year-old Pietersen, who played 104 tests for England.