Ferrell, with Dennis Smith (hip) sidelined, will start at point guard for Friday's game against the Bucks, Earl K. Sneed of the Mavericks' official site reports.
Ferrell will likely see a bump in workload as well, as the Mavericks are a bit thin for backcourt depth. So far this season, he's averaged 9.4 points, 2.8 rebounds and 1.9 assists across 28.1 minutes per game.