"In terms of the team, we've realised that we've lost some key players in our ODI setup," Smith, who was forced out of the last three ODIs through injury, told a news conference in Cape Town on Wednesday.

"Trying to replace a guy like Shaun Pollack, who lengthened our batting and finished off games, and with a lot of the young guys struggling with their form in the ODI setup has created a bit of pressure on the team."

The Proteas won the Test series against England 2-1 but have since slumped to four consecutive defeats in the five-match ODI series.

"I think the Test side is strong in itself, it's had a huge amount of success this year," Smith said.

"This season as a whole has been incredibly successful for South African cricket and we're obviously pretty proud of what we've achieved."

An elbow injury forced Smith to return home from England, but he hopes to be fit in time for South Africa's tour of Australia which begins on Dec 17 with a Test match in Perth.

"It's pretty tender at the moment but I'm seeing the surgeon next week," he said.

"I've got the opportunity to rest now and get it right and once I've seen the doctor I'll have more clarity on that, but I hope to get some domestic cricket in before we go to Australia."