Bulls add a dash of speed for Sharks showdown
The hard-running Ulengo, who scored 11 tries in 11 matches for the Blue Bulls in last year's Currie Cup, replaces Trevor Ismaiel on the right wing in the only change to the starting backline.
Up front Bulls coach Nollis Marais also swapped Roelof Smit and Nic de Jager around, with Smit starting at openside flank and De Jager moving to the bench.
South Africa's Young Player of the Year, Jesse Kriel, has been named on the bench.
Kriel missed the Bulls' win against the Rebels two weeks ago due to a head clash in training, but has been cleared to take the field against the leading South African team in the competition.
He will replace Dries Swanepoel.
"Jamba was one of our star players last year and deserves an opportunity. We have good depth amongst our outside backs and I am happy to give Jamba a run against the Sharks," Marais explained.
Bulls: 15 Warrick Gelant, 14 Jamba Ulengo, 13 Jan Serfontein, 12 Burger Odendaal, 11 Bjorn Basson, 10 Francois Brummer, 9 Rudy Paige, 8 Arno Botha, 7 Jannes Kirsten, 6 Roelof Smit, 5 Grant Hattingh, 4 Rudolph Snyman, 3 Marcel van der Merwe, 2 Adriaan Strauss (captain), 1 Trevor Nyakane.
Replacements: 16 Jaco Visagie, 17 Lizo Gqoboka, 18 Hencus van Wyk, 19 Jason Jenkins, 20 Nic de Jager, 21 Piet van Zyl, 22 Tian Schoeman, 23 Jesse Kriel.
Date: Friday, Match 18
Venue: Loftus Versfeld, Pretoria
Kick-off: 19.00 (17.00 GMT)
Referee: Glen Jackson (New Zealand)
Assistant referees: Stuart Berry (South Africa), Rasta Rasivhenge (South Africa)
TMO: Willie Vos (South Africa)