It is a big day for the PSL and Ajax, who want Mokhari's ruling - which led to their automatic relegation as the bottom-placed team on the Absa Premiership log - to be overturned and the club reinstated to 15th position on the standings for 2017/18.
This came after Tendai Ndoro contravened FIFA rules by playing for three clubs - Orlando Pirates, Saudi side Al Faisaly and Ajax - in a season, although the Urban Warriors at one stage were given the green light by the PSL DC to use the Zimbabwean striker.
Should Ajax fail with their court case, which is expected to conclude today, they could appeal to the Court of Arbitration for Sport in Lausanne, Switzerland.
Usuthu have an interest in the matter as they initially finished eighth on the log - thereby qualifying for the MTN8 Cup - but dropped to ninth following Mokhari's ruling.
"The case went ahead yesterday and I'm in Johannesburg in court," AmaZulu team manager Qedi Dlamini told KickOff.com.
"What we did as a club, we applied for the arbitrator's decision to be reviewed. So our lawyers are there in court as we speak."
Black Leopards' victory in the promotion/relegation play-offs - which Ajax were set to compete in prior to Mokhari's ruling - could be affected by today's legal proceedings.