Epsom Handicap winner Rock Kingdom has joined the list of contenders for Saturday’s Tatts Cox Plate.

The decision was made by trainer Gai Waterhouse who payed the $130,000 late fee to have the four year old accepted into the $3 million race.

Rocks Kingdom will be racing against Cox Plate favourite Whobegotyou and Bart Cummings’ rising star So You Think.

Although several racing enthusiasts are commenting on the lack of star quality in this year’s race, the showdown between Mark Kavanagh’s four year old Whobegotyou and Mick Price’s same aged Heart of Dreams will definitely be a spectacle to witness.

The two have previously contended each other in the 1800m Underwood Stakes where Heart of Dreams beat Whobegotyou however three weeks later in the 2000m Yalumba Stakes, Whobegotyou evened the score with a superb win over the gelding.

Another of Gai Waterhouse’s contenders is the three year old Manhattan Rain which won the AJC Sires Produce as a two year old.

Despite carrying a weight advantage of just 49.5kg in the upcoming race, the colt was not able to win the Group 1 Caulfield Guineas in its own age group earlier this spring, which has led to doubts as to whether he can beat the much older and experienced horses on the field.

Cummings’ So You Think has had just four starts and is yet to win a Group 2 race let alone a Group 1 event yet there are plenty of punters predicting the colt may be the race’s third favourite to win.

Lloyd Williams horse Zipping finished second in last year’s Cox Plate and is a real contender for the race with a solid spring campaign so far.

Over the next few days, there will be plenty of horses eliminated from the list of contenders with only 14 horses expected to hit the track on Saturday.