Ross, who played four List A matches for South Australia last summer, scored 119 off 111 deliveries on Monday in a scratch match on Adelaide Oval No.2 to stake his claim for a place in the Redbacks’ starting XI.
The 27-year-old was well-supported by experienced right-hander Callum Ferguson (88 off 76) and youngster Daniel Drew (76 off 42) in leading his side to victory.
New rookie Jacob Dickman also impressed, top-scoring with an 88 off 70 balls for the opposition while pace trio Wes Agar, Joe Mennie and David Grant were the leading wicket-takers of the match with two apiece.
Cooper was the standout of the previous internal trial which was spread across two days due to inclement weather.
He hit an unbeaten 116 off just 56 balls featuring 18 boundaries, combining with left-hander Jake Weatherald (94) and Patrick Page (71).
Weatherald enjoying conditions in the middle ☀ as our internal trial resumes with the Cooper XI on the chase pic.twitter.com/XesmvGDc6m— West End Redbacks (@WestEndRedbacks) August 30, 2019
Swing bowler Nick Winter (3/40) continued his form from a successful stint in the UK while second-year seamer Luke Robins (3/92) was also busy with the ball.
The Redbacks will play another internal practice match on Wednesday before the squad travels early to Queensland to finalise preparations ahead of South Australia’s Marsh One-Day Cup opener against the Bulls on 24 September at AB Field.