Mark Waugh will confirm his retirement on Monday.

The NSW veteran has called a press conference for 11am at the Sydney Cricket Ground, where it's understood he will officially announce his departure from the game at the end of the season.

Waugh's decision means NSW will be without both Waugh twins, Mark and Steve, next summer as well as coach Steve Rixon, who will coach Surrey in the English county league.

The Blues have only three games left before the Waughs depart: this week's Pura Cup fixture against South Australia at the SCG, next Sunday's one-dayer against Tasmania at the SCG, and another Pura Cup clash with Queensland at the SCG from March 4-7.

Steve, who retired from Test cricket in January, admitted after the Blues' eight-run ING Cup win over South Australia on Sunday that motivation was fractionally harder to find now his international playing days were over.

"It's certainly different when you can't play for Australia," said Waugh.

"I'm still giving it 100 per cent but you haven't quite got that two three per cent edge when you're striving to play for Australia. Once you haven't got that opportunity, it sort of drops off in that regard just a fraction.

"It's just a fact."

Steve Waugh made 14 from 15 balls at Drummoyne Oval; Mark fell for 20 from 26 balls.

"There's plenty to play for - lose today and we'd probably run last," said Steve.

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