Following a photo finish to decide the fastest Springbok over 50 metres, Cheslin Kolbe now steps into the blocks against another SA speedster.

In the narrowest margin for victory last week, Kolbe won just over 50% of the votes to pip Tonderai Chavhanga, who previously blitzed Bryan Habana after the Bok icon set the pace with a landslide win over Makazole Mapimpi.

Now, Kolbe takes his mark against Seabelo Senatla, the supersonic wing who blazed a trail on the sevens circuit before switching to 15s full time.

Boasting a personal best of 10.6 seconds over 100m, Senatla scored a whirlwind 230 tries on the World Sevens scene and is fifth on the all-time try-scorers list.

The former Blitzbok has shown no loss of pace for Western Province and the Stormers, his deadly finishing and acceleration this season even putting him in the Springbok selection mix for the July series against Wales.

READ: Speed king: Chavhanga, Kolbe in the blocks

MORE: Habana, Chavhanga take their marks