Axios

United Soccer League owners voted this week to introduce promotion and relegation by 2028 as they prepare to launch a new top-tier soccer league.

Why it matters: This is a huge move in the U.S. soccer landscape, rewarding teams that perform well with promotion to a higher league. Teams that perform poorly will face relegation to a lower league.

AI chatbots are not quite ready to pick your March Madness brackets.

Why it matters: Tech companies tout AI as semi-autonomous agents, but my testing shows that plenty of tasks are still beyond its capabilities.

You shouldn't stress about filling out your office bracket this week, as one of the best things about March Madness is that previous knowledge of the sport is not necessarily correlated with success.

Why it matters: It probably doesn't! Nobody has ever filled out a perfect bracket.

• In the men's tournament, powerhouses with future NBA players are routinely upset by tiny schools that get hot, especially in the early rounds.
• As far as the NCAA can tell, only one person has ever even picked perfectly through the Sweet 16.

Yes, but: In the women's NCAA Tournament, there a fewer upsets than in the men's, so the margins for error on your bracket are lower.

North Carolina schools have historically dominated in the men's NCAA basketball tournament, reaching the Final Four a combined 44 times.

Why it matters: A review of bracket history shows the longtime dominance of college basketball's "blue blood" programs — always useful knowledge when filling out your bracket — but there's always the potential for lesser-known schools to make a deep run.

Between the lines: North Carolina's tourney success is driven largely by Duke (17 Final Fours) and UNC (21), with some help from N.C. State (4), Wake Forest (1) and UNC-Charlotte (1).

Each year, Sony developers try to balance between making "MLB: The Show" fun and authentic.

Why it matters: "Authenticity is the most important thing when it comes to simulation sports games — if it's not right, fans notice immediately," Ramone Russell, San Diego Studio director of product development and brand strategy, tells Axios.