County champions Nottinghamshire have agreed contract extensions with batsman Alex Hales and all-rounder Steven Mullaney.
Both players established themselves in the first-team in all formats during 2010 and have been rewarded with new contracts that run through to the end of the 2013 season.
"Alex and Steven put in some fantastic performances for us last season and they have the ability to be key members of the team for a number of years," Notts director of cricket Mick Newell told the county's official website.
"They forced their way into our plans and took advantage of the opportunities they were given and I'm pleased that they were so keen to sign new deals despite having a year to run."
Hales, 21, shone at the top of the order in the limited-overs formats and also scored 677 runs in 12 Championship appearances.
"Alex has been asked to bat in different positions but my plan is for him to begin next season at number three in four-day cricket with Mark Wagh opening," added Newell.
"He can go a long way in the game and the next steps are for him to exert an influence on our results and then to push for an England Lions call."
Mullaney joined Nottinghamshire from Lancashire last winter and began the 2010 season as captain of the second XI.
But the 23-year-old forced his way into the first-team reckoning and ended up playing 11 times in the Championship.
"I like Steven's character and desire and I think it's fair to say that he has surpassed his own expectations with what he has achieved at Trent Bridge," said Newell.
"He wants to be involved in every match we play and he is a player that will continue to work on his game and make continual improvements."