Former SA under-20 flyer Sergeal Petersen has fully recovered from an ankle injury and will start on the wing for the Free State Cheetahs against the Golden Lions in Saturday’s Currie Cup semi-final in Bloemfontein. Petersen replaces Rayno Benjamin while centre William Small-Smith drops out of the side altogether for the crunch match against the defending champions. The Cheetahs have gone through the entire campaign without a blemish‚ winning eight out of eight pool matches.But the Lions have hit form recently and will ask some tough questions of the tournament pacesetters. Coach Franco Smith also made a couple of changes to the pack from the side that beat Griquas 63-26 in their final pool match. Flank Paul Schoeman replaces Henco Venter while Namibian hooker Torsten van Jaarsveld takes over from Jacques du Toit in the No 2 jersey. “It [selections] gave me a big headache‚” Smith told Bloemfontein radio station OFM. “Rayno [Benjamin] has done really well‚ although Sergeal has got something special about him. “We all know that he has the X-factor and that’s something that may be needed.“From my experience I know that semi-finals are about moments and Sergeal has the ability to do something special. “I took a long time to make this decision and my heart really bleeds for a guy like William Small-Smith and everybody else that has trained so hard. Michael van der Spuy is another one.” Free State Cheetahs: - 15 Clayton Blommetjies‚ 14 Sergeal Petersen‚ 13 Francois Venter (Captain)‚ 12 Nico Lee‚ 11 Raymond Rhule‚ 10 Niel Marais‚ 9 Shaun Venter‚ 8 Niell Jordaan‚ 7 Uzair Cassiem‚ 6 Tier Schoeman‚ 5 Reniel Hugo‚ 4 Justin Basson‚ 3 Aranos Coetzee‚ 2 Torsten van Jaarsveld‚ 1 Ox Nche. Replacements: - 16 Jacques du Toit‚ 17 Charles Marais‚ 18 Armandt Koster‚ 19 Henco Venter‚ 20 Tian Meyer‚ 21 Fred Zeilinga‚ 22 Rayno Benjamin‚ 23 Beertjie van Vuuren. Golden Lions: - 15 Andries Coetzee‚ 14 Koch Marx‚ 13 Jacques Nel‚ 12 Rohan Janse van Rensburg‚ 11 Anthony Volmink‚ 10 Jaco van der Walt‚ 9 Ross Cronje‚ 8 Fabian Booysen‚ 7 Cyle Brink‚ 6 Kwagga Smith (Captain)‚ 5 Bobby de Wee‚ 4 Ruan Ackermann‚ 3 Julian Redelinghuys‚ 2 Malcolm Marx‚ 1 Jacques van Rooyen. Replacements: - 16 Akker van der Merwe‚ 17 Corne Fourie‚ 18 Ruan Dreyer‚ 19 Lourens Erasmus‚ 20 Ruaan Lerm‚ 21 Faf de Klerk‚ 22 Stokkies Hanekom‚ 23 Sylvian Mahuza. - TMG Digital..