Johnny O'Brien was traded 2 times:

Pittsburgh Pirates

Acquired: 11.73 WAR - Sent: -0.99 WAR = 12.72 WAR

Acquired: $0.00 - Sent: $0.00 = $0.00

Acquired: 1201 G - Sent: 187 G = 1014 Games

Acquired: 3448 PA - Sent: 644 PA = 2804 Plate Appearances

Acquired: 0.0 - Sent: 6.0 = -6.0 Innings Pitched

Philadelphia Phillies

Acquired: 86.58 WAR - Sent: 39.51 WAR = 47.07 WAR

Acquired: $0.00 - Sent: $74,500.00 = $-74,500.00

Acquired: 3643 G - Sent: 2824 G = 819 Games

Acquired: 10419 PA - Sent: 7602 PA = 2817 Plate Appearances

Acquired: 11796.0 - Sent: 7676.0 = 4120.0 Innings Pitched

Transactions current as of 2021 season. See an issue with this player? Please report it.
Transaction and player information was obtained from Retrosheet.

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