Commissioner Rob Manfred joins baseball labor negotiations

New York Yankees managing general partner Hal Steinbrenner, left, and San Diego Padres vice chairman Ron Fowler walk at Roger Dean Stadium in Jupiter, Florida, where baseball labor talks continue. | Ron Blum/AP

JUPITER, Fla. — With just over three days until Major League Baseball’s deadline for a deal that would ensure a 162-game season, commissioner Rob Manfred joined the talks Friday as negotiators met again during a week with no sign of significant progress.

This was the fifth straight day the sides talked, and the first time Manfred was seen at a session.