Trainer Mark Kavanagh will reassess West Africa's summer campaign after the colt's failure to translate a nine-length country win on debut to city success at Moonee Valley.

West Africa finished fourth over 1000m behind Maroon Bay as the $1.40 favourite on Friday night and the trainer admitted he was disappointed.

Kavanagh said West Africa's work on Monday morning would determine whether he pressed ahead with the colt which is owned by a group which includes his breeders Coolmore.

"We'll have a good look at him under saddle on Monday morning and make a decision from there," Kavanagh said.

"There weren't a lot of excuses for him, maybe blinkers, maybe a softer track. It was a wet track when he won.

"I may rest him for three weeks or so. I'll have to talk to the owners, but he certainly wasn't suited by the conditions last Friday night."

He said the break would give him time to freshen the three-year-old up as connections look for his next challenge.

West Africa was to have made his metropolitan debut at Caulfield earlier in the month but was scratched on race eve after minor swelling was found in a leg after he kicked a feed bin.

Kavanagh has had a mixed season with the star mare Atlantic Jewel providing the high and the low.

The winner of 10 of her 11 starts, Atlantic Jewel suffered her first defeat when edged out of the Underwood Stakes by It's A Dundeel.

She bounced back to claim the Group One Caulfield Stakes but just days before the Cox Plate, she suffered a tendon injury prompting her retirement.

The mare is also part-owned by Coolmore who have taken to Ireland where she will be mated with the champion European stallion Galileo in February.