VALLARTA, Mexico (AP) -- Aldrich Potgieter had the lead going into the final round of the Mexico Open, minus the cushion he enjoyed after a sloppy finish Saturday that made him settle for a 4-under 67 and a one-shot advantage over Brian Campbell at Vidanta Vallarta.

South Africa's Aldrich Potgieter shot 4-under-par 67 to maintain the lead through the third round of the Mexico Open on Saturday at VidantaWorld in Vallarta, Mexico. Potgieter is at 20 under for the tournament,

Though his lead was cut from his overnight advantage of four, the 20-year-old PGA Tour rookie Aldrich Potgieter did well to stay in front ahead of the final round. Potigieter moved to 20-under with a four-under 67 in round three.