Major League Soccer and U.S. Soccer will announce an eight-year contract with ESPN, Fox and Univision on Monday that will establish weekly broadcast windows for M.L.S. games on Friday and Sunday nights.

The new partnership, details of which will be announced in New York, gives the networks the exclusive right to M.L.S. and United States national team games until 2022. ESPN and Fox Sports 1 will split the English-language national team package and will team with Univision’s networks to broadcast about 125 M.L.S. games each season.

But the most important aspect of the deal for M.L.S. and its fans could be the establishment of game-of-the-week windows on all three networks. Univision — primarily UniMas — will show a game of the week on Fridays (with SAP capability for English-speaking fans), and ESPN and Fox Sports 1 will broadcast a doubleheader every Sunday at 5 and 7 p.m.

M.L.S. has long craved such “destination viewing” windows; the league’s expiring TV contract included games on six days of the week and more than 20 start times. The league has said its research shows that even its most dedicated fans sometimes have little idea when the games are on.