The person spoke to The Associated Press on condition of anonymity because the trade had not been announced.
Wojnarowski noted that league sources indicated the Lin trade will likely speed up the process of the Hawks trading guard Dennis Schroder this summer.
Meanwhile, the Nets also acquired power forwards Kenneth Faried and Darrell Arthur, a 2019 protected first-round pick and a future second-round pick from the Denver Nuggets for point guard Isaiah Whitehead, ESPN's Adrian Wojnarowski reported.More news: Bottom and rear of Galaxy Note 9 seen in leaked poster
The team was hoping to clear the logjam at the guard position, which already has D'Angelo Russell, Spencer Dinwiddie, Allen Crabbe, and Caris LeVert to split playing time.
Lin became the first player in National Basketball Association history with at least 20 points and seven assists in each of his first five starts before undergoing left knee surgery in March to end his season.
Lin played in just one game for the Nets last season, rupturing his right patella tendon in the team's season opener.More news: Kellogg's Honey Smacks: officials warn against cereal after salmonella outbreak
Lin, headed to his seventh National Basketball Association team as he prepares to enter his ninth season, now joins a roster that includes two notable point guards, No. 5 overall pick Trae Young and veteran Dennis Schroder.
Lin, who turns 30 next month, was the first USA player of Chinese or Taiwan heritage to play in the National Basketball Association when he joined the Golden State Warriors in 2010. Denver also got rid of $21 million in salary with the deal, with the bulk of that coming from the $13.8 million Faried is owed next season. Both are entering the final years of their contract.
An eight-year veteran, Lin has career averages of 12.0 points, 4.5 assists and 2.9 rebounds.More news: Blockbusters in Alaska set to close; 1 store left in US