AP Source: Excel severs ties with Lakers' Clarkson
The person spoke on condition of anonymity because neither side has released details of the split, which happened last month.
The Lakers picked Clarkson in the second round of the draft in 2014. He averaged 11.9 points and 3.5 assists in his rookie season and was named to the All-Rookie First Team.
Excel Sports Management represents some of the biggest names in the NBA, including Los Angeles Clippers forward Blake Griffin, Cleveland Cavaliers forward Kevin Love and Los Angeles Clippers forward Paul Pierce.