Zwane picked up a toe injury in the MTN8 quarter-finals against Golden Arrows in August, which ruled him out of Bafana Bafana's goalless draw with Libya last month in a 2019 African Nations Cup qualifier.
Despite playing a few matches since then, his place in the Bafana squad was taken by clubmate Lebohang Maboe, who helped the national side clobber Seychelles 6-0 in AFCON qualifying on the weekend.
Zwane was also in action on Saturday, as he skippered Sundowns to a 2-1 win over AmaZulu in the second instalment of the Prince Mangosuthu Legacy Cup at Prince Mangosuthu Stadium.
Zwane, who captained the side in the absence of Hlompho Kekana and Denis Onyango who were on international duty, scored the winner in Ulundi.
However, he admits he is yet to hit top gear since his time out.
"All I can say is I'm not hundred percent fit but I'm getting there," Zwane told KickOff.com.
"I'm taking each game at a time. I'm trying to bring my fitness back by doing extra work at training, but all I can say so far so good."
Zwane is known for using his studs on occasion to pass the ball, which he displayed against Usuthu.
He set up Sibusiso Vilakazi for the winner against Arrows in the MTN8 in such fashion, while his devilish use of the technique went viral on social media in August when he used it to shibobo Polokwane City defender Sibusiso Mbonani, who lost his balance in the process.
He added: "That's my way of playing, I've mastered this thing.
"So, for me, it's easy. As long as it benefits the team, other guys to score, that is what is important."
Sundowns, who are the only side in the Absa Premiership yet to lose a match this season, will host Bloemfontein Celtic in the Telkom Knockout Last-16 at Lucas Moripe Stadium this Saturday.
They will resume their league campaign with a trip to Chippa United on October 27.