San Francisco 49ers quarterback Colin Kaepernick practices in Santa Clara, California on Wednesday. The 49ers are scheduled to play the Seattle Seahawks for the NFC Championship today. INSET: Kenya’s David Adongo. [PHOTOS: AP, INDIANA COLTS.COM]

The American National Football League BFL reaches its zenith this weekend with the final four teams taking the field to battle out for the AFC and NFC championship title games.

Watching on television, however, will be Kenya’s own David Adongo whose team, the Indiana Colts were eliminated by the Patriots during the play offs. The good news for Adongo however is that he has been promoted from reserve to first team.

The Colts made the move in Decmeber, adding Adongo and offensive lineman Xavier Nixon from the team’s practice squad. The Colts made room by placing linebacker Mario Harvey and running back Dan Herron on injured reserve.

Adongo represents a great interest -- a 23-year-old with admirable size, speed and enormous strength. But he comes from a rugby back with no NFL experience.

He landed in Indiana from South Africa after a rugby agent, based in Hong Kong, reached out to the Colts.

Championship Sunday will see four very good teams still left in the play off tournament battle it out for the final two slots to advance to New York for the February 3 Super bowl.

The San Francisco 49ers take on Seattle Seahawks (at 2:30am local time) in a rabid and very loud field in Seattle. Both teams met last December 8 during the regular season game and 49ers handed the Seahawks one of only two season defeats 19-17.

The Sunday game will feature two of the youngest and possibly least experienced quarterbacks. For San Francisco, they are in familiar territory having made it all the way to the Super bowl only to lose to Baltimore ravens 34-31 last year.

This time, with the addition of Anquan Boldin (who ironically played for the Ravens last year but was traded at the end of the season), the team is determined to finish off with the Vince Lombardi trophy that slipped through their hands.

But Quarterback Colin Kaepernick will have to get past a robust and overconfidence Seahawks that last played in their only super bowl appearance in 2005. The team has seen a resurgence with probably its best season ever finishing at 11-2 record and with the skills of two key players.

They are quarterback Russell Wilson and Rushing back Marshall Lynch who sealed Seattle’s ticket to the NFC Championship with a 31-yard touchdown run with 2:40 remaining in the wild card encounter against the New Orleans Saints. Both players and the teams stellar efforts will have to make up for injured wide receiver Percy Harvin.

Both teams have a reputation for disliking each other and this should one brutal and drama filled encounter. Sea Hawks have an effective offense that will have to bear the punches of a punishing 49ers defense known for its brutality against good quarter backs.

In addition, Seahawks have home field advantage having been the number one seed in the NFC coupled with a loud noise stadium known to intimidate opponents.

Last September the Sea hawks fans attempted to break the Guinness world records for crowd noise. The record currently stands 131.76 dbA or decibels (an adjusted metric that measures how the noise actually sounds to a human ears), set two years ago by 53,000 fans of Turkish soccer side Galatasaray.

And which team was Seahawks playing that Sunday night? San Francisco 49ers. The game promises to be a nail biting thriller to the very end.

The AFC championship game (at 11:00pm local time) features Denver Broncos taking on New England Patriots in Mile high city. This is billed to be a clash of possibly two of the most iconic quarterbacks in NFL history, if their career is anything to go by. Tom Brady of the Patriots has three super bowl rings and is one of the youngest to win at 24.

He joined an illustrious list that includes Ben Roethlisberger, Joe Montana and Joe Namath. But on Sunday he faces his perennial rival, Broncos (and formerly Colts) quarterback Peyton Manning who has made two trips to the Super bowl with Indiana Colts.