After the break, Corne Krige scored for Saints and Dan Harris responded for Saracens before Jackson's late kick.

BBC: SPORT | Rugby Union | English | Northampton 20-21 Saracens

Meanwhile, Springbok coach Nick Mallett announced that Stormers skipper Corne Krige will replace injured flanker Rassie Erasmus for the second Test.

BBC: All change for England

South Africa have also made two changes to their side with prop Cobus Visagie and flanker Corne Krige coming into the starting XV.

BBC: Austin Healey will be comfortable back on the wing