Per Mark Lazerus of the Chicago Sun-Times, Sharp will likely sign a contract that could include performance bonuses when free agency begins on Saturday. Lazerus added the deal was worth $1 million toward the salary cap.
Sharp has played 10 of his 15 NHL seasons with the Blackhawks. He was traded to Chicago by the Philadelphia Flyers in December 2005 and was part of the franchise's three Stanley Cup victories in 2010, 2013 and 2015.
During the 2013-14 season, Sharp set career highs with 44 assists and 78 points and his 34 goals matched his second-best single-season output.
The Blackhawks traded Sharp to the Stars in July 2015 due to salary-cap concerns. The 35-year-old had just 18 points in 48 games last season, his lowest scoring output since his first full season in 2003-04.