Niall O'Brien has delayed finger surgery, but Juan Theron will not be available for the start of Northants' FP t20 campaign.
Northamptonshire have bolstered their line-up for the Friends Provident t20 by signing South African pace bowler Juan Theron.
Tri-Series in Australia 2015
Australia win by 112 runs
England's lack of aggression and power with the bat is a concern heading into the World Cup, says David Lloyd.
Australia and New Zealand will co-host the 2015 Cricket World Cup from February - here's a taster of what's in store.
Michael Clarke must skipper Australia in the World Cup if they are to stand a chance of winning the trophy, says Shane Warne.
Sky Sports' cricket experts have picked their favourite hundreds from previous World Cups. Do you agree with their choices?
England's World Cup opponents will not relish the return of fit-again James Anderson, says Nick Knight.