Durban - JP Pietersen believes the new Jake White-run Sharks team have an increase in energy and belief since he last played for the coastal side little over six months ago.
The Springbok veteran, who has been playing club rugby in Japan since August last year, played the full 80 minutes for the Sharks when they beat the Reds 35-20 in Durban over the weekend.
"I've been watching them from Japan and they've been playing some good rugby," Pietersen, who will win his 100th Super Rugby cap this weekend said on Monday.
"It wasn't very easy for me just to come in and play, because there's a new coaching staff here and I was trying to learn quickly.
"Fortunately I learnt quite a lot and Saturday went well. There was a bit of rust, but it was good to be back."
The 27-year-old admitted that working with World Cup-winning coach White in the past had helped him settle quicker and hoped the new director of rugby will bring a first-ever Super Rugby title to Durban.
"Like Jake said when he took over the job, he's here to win the competition," he said.
"He sent that message to all the boys and we're all believing that.
"We've said every year in the past that we are going to win it, we've come close but never won it.
"So I think this year, it's probably the same mindset, but the belief is the difference.
"It's probably 100 percent better than what it's ever been."
Pietersen said White's arrival had been key to the upturn in fortunes of players like centre Frans Steyn and flyhalf Patrick Lambie -- two men that struggled over the past year due to injury, form and confidence.
"You can see with Frans, he's probably playing his best rugby for a long time," he said.
"He's got no more niggles, no more injuries that have been worrying him.
"So he's in good shape and he's kicking 50 metres again and you can see that the old Frans is back. I can see he's happy and the smile is back on his face."
The Sharks, who top the table with four wins from four games, face the sixth-placed Bulls in Pretoria on Saturday.