Christian Scotland-Williamson
Former NFL tight end Christian Scotland-Williamson on BBC Radio 5 Live

If the Niners get behind then they can't lean on their run game as effectively and if Christian McCaffrey doesn't go off for 75-plus yards then I think they're in real trouble.

It's the bright lights, this is what the Super Bowl means, it's that Championship pedigree. The Niners' talisman player coughing up the ball, it's a costly mistake - from the player that they drafted for, that was supposed to get them over the hump in this big game.

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Wow! The ball pops out from another Christian McCaffrey run and the Chiefs dive on it and recover the football!

George Karlaftis is the man who gathered for Kansas City and that is a huge play early on in this game - turnovers are just massive in the Super Bowl.

Just a third fumble of the season for McCaffrey - and not the game to make that rare mistake in.

Full-back Kyle Juszczyk gets the ball from a play action pass and takes it 18 yards for the opening first down of the Super Bowl.

And a great start gets even better when McCaffrey gets two more first downs in quick succession - the Niners are rolling early on!

An opening run for Christian McCaffrey gets a nice six yards.

Harrison Butker sends the ball into the air to a throng of cameras and phones flashing around Allegiant Stadium as Super Bowl 58 gets underway!

Here comes Brock Purdy...

Christian Scotland-Williamson
Former NFL tight end Christian Scotland-Williamson on BBC Radio 5 Live

It's almost flip-a-coin territory. I can't bet against Mahomes though. He's got so much on the line in terms of legacy that he can't let another [Super Bowl] slip away.

I think it'll be three touchdowns apiece and then it'll come down to which team has the ball and potentially a field goal [to win it].

Told you she was here.

Taylor Swift is accompanied by actor Blake Lively to cheer on Travis Kelce.

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The Chiefs win the coin toss and defer, as is usually the way, so San Francisco will get the ball first and Brock Purdy will lead the opening drive of Super Bowl 58.

Here we go!

Image source, Reuters

The billionaire owner of Tesla and X, Elon Musk is here too.

And clearly he's yet to be impressed.

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No Gordon, it says Chiefs, not Chefs....

This time last year Jason Kelce was facing off against brother Travis for the Philadelphia Eagles.

Tonight, he is, thankfully, fully clothed but he's still ensured we can't miss him in those natty red-and-orange dungarees.

Image source, Getty Images

Image source, Getty Images

Kyle Shanahan has been in two Super Bowls, first he was the offensive coordinator for the Atlanta Falcons when they blew a 28-3 lead against the New England Patriots.

Four years ago he faced the Chiefs and lost a 10-point lead in the fourth quarter - so the pressure is on.

The omens aren't great - this is the fourth head coaching rematch in Super Bowl history, and the winner of the first meeting has won the second all three times...

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The Chiefs are the designated home team but they're getting booed like an away teams as the Niners definitely have more fans in the house.

Considering their biggest rivals are the Las Vegas Raiders, Kansas City will be used to getting that kind of reception in this stadium.

Not long now...

Phoebe Schecter
Former Buffalo Bills coach on BBC Radio 5 Live

I do think that the Chiefs will be able to bring this home. They have this ability to pull things out of the bag when they need to, especially Patrick Mahomes.

But I think we should be looking at some sort of fourth-quarter turnover, something to really kind of put Brock Purdy under pressure, so keep an eye out for that as well.

Image source, BBC Sport

Tom Brady is universally known as the GOAT in NFL circles. With seven Super Bowl wins from his illustrious 23 years in the sport, he set standards and records that will never be beaten.

Or so we thought.

Then along came Kansas City Chiefs quarterback Patrick Mahomes who, at 28, will appear in his fourth Super Bowl tonight at the end of just his seventh season in the league - and if he wins he will match the three rings Brady had in his collection after his first seven campaigns.

Mahomes has also built up the same aura of invincibility and inevitability that Brady had, leading a Chiefs team to a fourth Super Bowl in five years and the kind of dominance not seen in the league since Brady himself led the all-powerful New England Patriots.

And in some statistical areas, Mahomes is already ahead of Brady, so the question has to be asked: can he chase down the GOAT? Here we have a look at how they compare.

Niners rookie Jake Moody missed a field goal in both their play-off games and in fact has missed four kicks in his past four games.

For the Chiefs, Harrison Butker is as solid as they come, making all 14 of his kicks this post-season, he also kicked the game winner in last year's Super Bowl.

He's made 28 of 32 career field goal attempts in his 18 play-off games, so there aren't too many other kickers you'd rather have standing over a crucial kick.

And we've seen before how kickers can win or lose these Super Bowls...

Dion Dawkins, Buffalo Bills offensive lineman: "The difference-makers are going to be the pass rushers. The pass rushers have got to be able to take over the football game and if they do, either side has a chance of winning. Everyone thinks it's about the quarterbacks but it's not. It's about the big guys in the trenches."

Frank Ragnow, Detroit Lions offensive lineman: "It will come down to the trenches. Maybe I'm biased, but there's two good offensive lines there so whoever performs the best there gives them the best chance of winning."

Jermaine Eluemunor, Las Vegas Raiders offensive lineman: "I'll always lean towards the line of scrimmage - whichever offensive line takes that over will win because that'll open up the run game and they'll be able to protect the quarterback. I have the 49ers winning - 24-21, and Christian McCaffrey the MVP."

We're not wishing for it...but if the Chiefs need a replacement due to injury or an ejection...this guy is ready!

"I am in full kit because I am a true fan baby. I go all the way full throttle. Go Chiefs!"

Sidenote: The pants (that's what Americans call trousers) are game worn pants from actual Chiefs linebacker Leo Chenal.

Image source, BBC Sport

Image source, Getty Images

A quick water for Post Malone?

Grease those vocal chords before he bursts into 'America The Beautiful' shortly.

Image source, BBC Sport/Getty Images

Andy Reid didn't win a Super Bowl in his first 20 seasons as an NFL head coach - reaching one with the Philadelphia Eagles in 2005.

Now 'Big Red' could win a third in five seasons, which would put him joint-third on the coaches' all-time list for Super Bowl wins.