Boston Sold John Mahnken to Indianapolis
On February 12, 1951, the Boston Celtics sold John Mahnken's player rights to the Indianapolis Olympians for cash. Boston's transaction page, Indianapolis' transaction page, the 1950-51 league transaction log and Red Auerbach's executive record all agree on the sale. Mahnken had been a regular Boston center, appearing in 46 games before the transaction and averaging 5.2 points, 4.0 rebounds and 1.5 assists. The reviewed sources do not preserve the cash amount, so Boston's financial return cannot be measured directly.
The Olympians Got 12 Games and a Playoff Stint
Mahnken appeared in 12 regular-season games for Indianapolis after the purchase. His role and production dropped sharply, to 2.3 points, 2.9 rebounds and 0.8 assists per game while shooting .170 from the field. He also appeared in all three of the Olympians' playoff games against Minneapolis, averaging 1.3 points, 3.7 rebounds and 3.0 assists. That gives Indianapolis a real but limited on-court return. The acquisition did not become a long-term roster piece for the Olympians.
Boston Took Cash for a Replaceable Rotation Player
Boston received cash for a player who had been part of the rotation but whose role could be replaced. The amount is unknown, which prevents a precise financial grade. Mahnken then appears back on Boston's 1951-52 roster for 60 games and again for 69 games in 1952-53. The reviewed Basketball-Reference transaction logs do not show how he returned to the Celtics, so that later Boston service should not be credited as a documented downstream return from this sale.
The Short Rental Leaves Boston Slightly Ahead
Indianapolis bought a veteran center and received 12 regular-season games plus a short playoff stint. Boston received an undisclosed cash payment and gave up only a partial-season contribution. Neither side produced a major asset outcome from the transaction itself. Because Mahnken's Indianapolis production was limited and the Olympians did not retain him into the next season, the slight edge goes to Boston for monetizing the rights. The unknown cash amount keeps that advantage modest rather than decisive.
Final Verdict
Slight Celtics Edge — Boston C+, Indianapolis C. Boston sold John Mahnken's player rights to the Indianapolis Olympians for cash on February 12, 1951. Mahnken had played 46 games for the Celtics that season at 5.2 points, 4.0 rebounds and 1.5 assists per game. Indianapolis received only 12 regular-season games from him, with his production falling to 2.3 points and 2.9 rebounds, plus three playoff appearances. Mahnken was back with Boston the following season, though the reviewed transaction logs do not document the mechanism of that return.