The England selectors have announced a 30-man England Performance Squad (EPS) for the 2013 summer international season.
There are no surprises in the list, with James Harris the only man yet to represent the senior England team in one of the three formats.
The promising seamer, who joined Middlesex from Glamorgan over the winter, had been part of the Lions and EPP squads.
Chris Tremlett is also included despite the injury problems which have seen him on the sidelines since last July.
The Surrey fast bowler, who made a huge impact in the last Ashes series in Australia, played just one Championship match last season.
ECB National Selector Geoff Miller said: "The players included in this squad reflect the progress they have made with senior England teams and the England Lions over the last twelve months.
"All of the players named in the EPS squad have been involved with one or more of the England squads during the winter, with the exception of Chris Tremlett who has been going through a rehabilitation process."
The ECB says the The England Performance Squad is "designed to allow the selectors to monitor the development of international players and better prepare them for the demands of the international game."
EPS squad: A Cook, S Broad, J Anderson, J Bairstow, I Bell, R Bopara, T Bresnan, D Briggs, J Buttler, N Compton, J Dernbach, S Finn, A Hales, J Harris, C Kieswetter, M Lumb, S Meaker, E Morgan, G Onions, M Panesar, S Patel, K Pietersen, M Prior, J Root, G Swann, J Tredwell, C Tremlett, J Trott, C Woakes, L Wright