Sussex closed Day 3 of the LV= County Championship match at Hove on 111/4, leading Glamorgan by 122 runs going into the final day.
Timm van der Gugten picked up two wickets in two balls, with Michael Hogan and Andrew Salter collecting one each, and Assistant Coach David Harrison felt that his two opening bowlers had done a good job early on, helping keep all three results in play.
"Michael Hogan and Timm van der Gugten have been outstanding in both innings with the new ball, they've done it for years.
"It's all to play for going into the final day, all results are possible. But we'll need to bowl well in the first session and try to keep the runs down, pick up a couple of wickets and we'll have a chance.
"We had two half-chances and it would have been nice if they'd stuck off Ben Brown and Ali Orr, who played really well.
"After losing time to rain it's probably (the equivalent of) a day-three pitch, we'll have to bowl well but we're confident of chasing down a score."