The Chicago Cubs and WGN radio are ending their relationship after 90 years, according to reports Wednesday.

The Chicago Tribune reported the Cubs have signed a long-term deal with CBS-owned station WBBM-AM 780 to carry the team's games starting next season. An announcement is expected on Thursday.

The move marks the end for the Cubs games being on the Tribune Co.-owned WGN-AM 720 station.

With the Cubs losing 197 games in two seasons, WGN used an opt-out clause in its contract due to declining ratings and revenue last fall. WGN couldn't come to terms with the Cubs on a new deal.

"We're very proud of our long-time association with the Cubs, but it has to make good business sense and the current arrangement does not," WGN radio president and general manager Jimmy de Castro said on his station, 87.7 The Game, on Wednesday morning.

The first Cubs game aired on WGN on April 14, 1925, nearly four years after the first baseball game was heard on the radio on KDKA in Pittsburgh and more than 16 years after the Cubs' last World Series.

According to ESPN.com, the Cubs might be leaving WGN-TV after this season as well, having opted out of that deal after last season. WGN-TV airs 70 games a season.