Sports News Roundup: Serena wins return in Hopman Cup; Predators down Capitals to end six-game slide

Following is a summary of current sports news briefs.

Mayweather blitzes Tenshin in Japanese boxing exhibition

Floyd Mayweather came out of retirement briefly to score a lucrative victory in an exhibition boxing match in Japan over kickboxer Tenshin Nasukawa that will do more for his bank balance than it did for the reputation of combat sports. The 20-year-old, who is unbeaten in professional kickboxing and mixed martial arts, was sent crashing to the canvas three times in the first round by Mayweather, leading the Japanese fighter's corner to throw in the towel.

Bills sign backup QB Anderson to one-year contract

The Buffalo Bills have signed veteran quarterback Derek Anderson to a one-year contract, the team announced Monday. No financial terms were announced.

Dorsey: Williams, Kitchens among Browns HC candidates

Interim head coach Gregg Williams and offensive coordinator Freddie Kitchens are candidates to become head coach of the Cleveland Browns. General manager John Dorsey said Monday at his season-ending press conference that the team's performance since Hue Jackson was fired at midseason put both coaches in position to be promoted.

Serena wins return in Hopman Cup

Serena Williams beat Maria Sakkari in straight sets at the Hopman Cup on Monday, winning her first non-exhibition match since losing the U.S. Open final in September after a tantrum. Williams had to shake off the rust to post the 7-6 (3), 6-2 victory in one hour and 44 minutes in the women's singles match.

Report: Steelers kept AB out of finale for disciplinary reasons

The reason Antonio Brown didn't play in the Pittsburgh Steelers' de facto elimination game on Sunday wasn't because of knee soreness but rather the result of a tumultuous week during which Brown argued with quarterback Ben Roethlisberger and didn't take part in the Saturday walkthrough. This is according to a report by NFL Network's Aditi Kinkhabwala on Monday, which cites multiple sources.

NFL: Bengals' Lewis among four head coaches dumped on Monday

Marvin Lewis left the top job at the Cincinnati Bengals on Monday, one of six head coaches ditched within 12 hours of the end of the National Football League regular season as teams acted swiftly in the wake of disappointing campaigns. Lewis had been in the job for 16 years, the longest tenure in franchise history.

Predators down Capitals to end six-game slide

Frederick Gaudreau scored the tiebreaking goal late in the second period as the visiting Nashville Predators posted the game's final five goals and defeated the Washington Capitals 6-3 in a Monday matinee. Nashville halted a six-game losing streak. Washington saw a four-game winning streak end while losing for just the second time in last 11 contests.

Dolphins fire Gase, reshuffle front office

Head coach Adam Gase was fired by the Miami Dolphins on Monday. Gase led the team for three seasons and posted a 23-25 regular season record, including a 42-17 loss in Buffalo on Sunday.

Raiders to name Mayock general manager

NFL Network draft analyst Mike Mayock is set to become general manager of the Oakland Raiders. Mayock becomes the right-hand man to Jon Gruden after shadowing the head coach for parts of the offseason. The Raiders fired Reggie McKenzie in December.

ATP roundup: Berdych returns with a win

After a six-month layoff with a back injury, former world No. 4 Tomas Berdych made a successful return to the court Monday with a 6-4, 7-6 (5) first-round win against Germany's Philipp Kohlschreiber at the Qatar ExxonMobil Open in Doha. The one-hour, 42-minute victory by Berdych was the Czech wild card's first match since June. He will face eighth-seeded Spaniard Fernando Verdasco in the second round.