O'Brien missed 35 days of training camp in a salary dispute.
The brothers worked there until 1908, when they quit over a salary dispute.
The chance came later in 1995, when members of the national team went on strike over a salary dispute.
Hafey's 1931 and 1932 seasons both began late due to salary disputes.
He held out most of the 1922 season over a salary dispute that continued into spring 1923.
He sat out the 1930 season over a salary dispute.
He briefly held out of training camp before the 2003 season due to a salary dispute.
He was out of work, having been released this fall by Channel 2 in a salary dispute after 16 years with the station.
A month later he was cut by the Patriots during a heated salary dispute.
It was widely believed by fans that he left because of a "salary dispute."