Kallis and Kirsten both enjoyed the Canterbury track

Neil McKenzie fired a case for inclusion in the Test team with a century as South Africa dominated at Canterbury.

McKenzie, who has not featured in the opening two Tests against England, made an unbeaten 105, striking 13 boundaries and three sixes.

He was given great support by the two Jacques, Rudolph (92) and Kallis, the latter rejoining the tour following the death of his father.

Kallis cracked 16 boundaries and a six in his 76-ball 77, while 22-year-old Rudolph hit 18 fours.

Mark Boucher, standing in for Graeme Smith who was rested, declared at the mid-point of the final session and his attack did not let him down, grabbing two wickets.

Opener Gary Kirsten was given a scare in the morning session when he was forced to retire hurt.

Kirsten was hit on the right elbow by Kent paceman Martin Saggers after scoring 40 and underwent ice treatment.

"It's bruised and swollen but he's okay," admitted a Kent spokesperson.

Fellow opener Herschelle Gibbs missed out when he was dismissed for four, while Boeta Dippenaar also struggled to find his form, scoring just a single.

The visitors added 114 runs after lunch for the loss of Kallis, caught behind to become Alamgir Sheriyar's second victim.

McKenzie and Rudolph then stepped on the gas, putting on 179 runs for the fourth wicket before the latter's dismissal precipitated the declaration.

Charl Willoughby struck early for South Africa, having Michael Carberry caught by McKenzie for five.

Monde Zondeki then made it 24-2 with the dismissal of in-form Ed Smith for seven, leaving Rob Key (14 not out) and Matthew Banes (10 not out) to see off the remaining overs before stumps.

The third Test starts at Headingley on 15 August with South Africa 1-0 up in the series.

Kent: MJ Banes, MA Carberry, RS Ferley, GO Jones, RWT Key, AGR Loudon, MJ Saggers, A Sheriyar, ET Smith, JC Tredwell, BJ Trott.