Martin, 21, returned from a knee reconstruction late in the season and played two AFL games to add to the two he played in 2009. He was elevated to the primary list at the end of last season.
Henderson, 22 next Saturday, was picked by the Crows as a rookie two years ago and made his AFL debut this year, playing 12 games. The former basketballer will be elevated to the Club’s primary list for 2011.
Doughty, who finished third in the club champion count on Friday night, will be the oldest player on Adelaide’s list next season. He turned 31 last month and has played 188 AFL games.
General Manager Football Operations Phil Harper said: “We are pleased to re-sign all three players, who are at different stages of their careers.
“Two young guns with pace and heaps of upside in Henderson and Martin along with Doughty, who will go onto our veteran’s lists.
“Michael’s form over the past three years has been quite outstanding, finishing in the top five of the club champion each year and playing the past 70 games without missing. Ricky’s second half of the season provided plenty of promise while Brodie’s last game against St Kilda showed why we were so keen to stick with him after he had a knee reconstruction last year.”
