Trevor Fisher Jnr / Getty Images The final round of the Joburg Open will be contested between Richard Sterne and Trevor Fisher Jnr, after their fantastic third round scores elevated them to a five point lead over the field. Both players shot rounds of -4 under par, 68, on the tough East Course to separate themselves from the chasing pack at the Royal Johannesburg & Kensington Golf Club. Trevor Fisher Jnr admitted to some nerves out on the course; " A bit of nerves set in there, you try not to think about the lead, but it's there in front of you. I was a bit jumpy with the swing and wasn't waiting at the top, so I hit a few bad shots there. But I came back nicely with a few birdies. It's just a feeling, and you've got to try and feel comfortable out there as much as possible. My last three or four years have been good on the Sunshine Tour. But I need to get to the next level now. It’s been good for me in terms of the stepping stones I’ve taken in the last 10 years. But I’ve stepped on a lot of stones, I need to get to the top now." Charl Schwartzel is one of four players tied in third spot, five shots adrift of the leaders, but he thinks there is still a chance of a win; " My game is not bad, but it can be a lot better. A bunch of putts didn't go in, so I hope that clicks tomorrow. If I can go out and get to twenty-something under, then I'll have a chance.” Felipe Agular of Chile remains the only player from outside South Africa who has a slim chance to win, he is alongside Jaco Van Zyl and George Coetzee at -14 under par, and will be five strokes behind at the start of play in the last round.