 Jepson went straight into the first team, making his debut in the opening match of the 1928–29 season, a 2–2 draw at Hull City.Jepson was injured in that match, and had to sit out the next two matches, before settling into the outside right position.In December 1928, he lost his place to Bobby Weale, who had just been signed from Swindon Town for a then club record of £1,000 Jepson regained his place at the end of March, playing in five of the last seven matches of the season, scoring three goals, as the "Saints" improved their league performance with a fourth-place finish.