Supporters of Kaepernick demonstrate at NFL offices

Supporters of former San Francisco 49ers quarterback Colin Kaepernick, who refused to stand for the national anthem to protest police brutality against blacks, showed their solidarity with him and his cause at a rally outside NFL headquarters in New York on Wednesday.

More than 1,000 people, many wearing jerseys bearing Kaepernick’s name, crowded the steps outside the NFL’S midtown Manhattan offices.

Kaepernick opted out of his contract with the team in March and remains unsigned. Supporters say he is being blackballed for his advocacy.

■ Giants: Coach Ben Mcadoo did not confirm or deny an ESPN report that wide receiver Odell Beckham (left ankle sprain) might not be ready for New York’s season opener.

■ Browns: Rookie second-round draft pick Deshone Kizer will start at quarterback in Cleveland’s preseason game Saturday at Tampa Bay, coach

Hue Jackson said.

■ Falcons: Running back Devonta Freeman (concussion protocol) was ruled out of Atlanta’s preseason game Saturday against Arizona.

■ Bears: Chicago signed left tackle Charles Leno to a four-year, $38 million contract extension, with $21.5 million guaranteed.

■ Jaguars: Quarterback Chad Henne will start Jacksonville’s preseason game Thursday against Carolina, coach Doug Marrone said.

■ 49ers: San Francisco signed free-agent defensive tackle Sen’derrick Marks, 30, to a one-year contract.