The postseason picture got less fuzzy this weekend with three teams on the verge of claiming division titles and some jockeying among the wild-card hopefuls.
Senator Cory Booker, Democrat of New Jersey, has introduced the bill, which would disallow leagues, most notably the N.F.L., from claiming status as tax-exempt nonprofits.
N.F.L. Commissioner Roger Goodell’s varying responses to disciplinary problems, including the Ray Rice domestic-violence case, have led critics to call for him to step down.
Rihanna criticized CBS on Twitter after the network, whose pregame show focused on the Ray Rice story, pulled her song from “Thursday Night Football.”
The professional soccer team Shakhtar Donetsk relocated to Kiev because of intense bombardment in the city over the last few months.