24 year old right sided defender Jon Otsemobor passed a medical and agreed personal terms with Norwich City on 13th June 2007 ahead of signing for the Canaries on 1st July 2007 on a Bosman deal.

Otsemobor, who is a former England Under-21 international, started his career as a trainee with Liverpool. He made his debut for the club in Liverpool's 3-1 win over Southampton in the league cup. He was loaned out to Hull City for the rest of the season to gain some first team experience. Otsemobor scored his first career goal for Hull in their 4-2 defeat to Rushden & Diamonds. Otsemobor also scored in Hull's 2-0 win over Shrewsbury Town and the 2-1 defeat at Wrexham.

In the 2003/2004 season, Otsemobor played 5 more games for Liverpool, making appearances in the 1-1 draw with Newcastle United and the 3-1 win over Bolton Wanderers. He also appeared in the newspapers in October 2003, when he was shot in the buttocks during a gun incident in a bar.

He was then loaned out again, this time to Bolton Wanderers where he only played one game, which was Bolton's 3-1 defeat to Manchester City. Otsemobor was then loaned out to Crewe Alexandra on a season long loan for 2004/5.. He made his debut for Crewe in the 3-0 win over Watford. He scored one goal during his loan at Crewe, which was in the 2-2 draw with Leicester City.

Otsemobor signed for Rotherham United on 5 July 2005 on a free transfer from Liverpool. At Rotherham, Otsemobor made eight appearances and scored one goal for the club before being sold again, this time on a free transfer to Crewe Alexandra in January 2006. It was whilst playing for Crewe that he caught Peter Grant's eye and earned a slot in the League One team of the year. He had made 43 appearances for Crewe before he signed for City.

Grant said he is delighted to have secured the 24-year-old's signature: “I'm very pleased to get this one sorted as he is one that we have been watching for some time. He is strong, athletic and quick and is a very good, young defender. He still has a lot to learn of course but it's no surprise to me he was in the League One team of the year. He is comfortable on the ball as you'd expect from a player who learned his trade at Liverpool and played a lot of games at Crewe, where Dario Gradi always encourages attractive football. He is versatile and as well as full-back can play as centre-back or as part of a defensive three. Of course he knows he's still got some learning to do and he's going to be in there competing for a first team place with everyone else, but I'm delighted to add a player of his quality to the squad. I'm sure the fans will like him when they see him play, and hopefully he will be a major asset to the club for many years to come.”

Jon made his Norwich debut on the opening day of the 2007/8 season in the 0-0 draw against Preston at Deepdale

Having lost his place to Russell Martin during the winter of 2009-10, Jon was allowed to sign for Southampton on 14th January 2010. He was in the final six months of his contract so Paul Lambert allowed him to depart with Semy signing a six month contract with the Saints. He made his debut for Southampton on 16th January 2010 in a 1-1 draw at Millwall.

Jon was one of thirteen players released by the Saints at the end of the 2009/10 season

On 9th June 2010, it was announced that Jon would join Sheffield Wednesday on 1st July 2010

He stayed with the Owls until mid May 2012. He had made 37 appearances for them.

Jon signed for MK Dons on 6th July 2012, signing a one year contract. Manager Karl Robinson said: "I believe if we keep him fit, we've got the best right-back in the league."

On 28th November 2013, Otsemobor returned to Merseyside signing for Tranmere Rovers on a one month loan. He made just one appearance for Rovers. On his return to MK Dons, he was released from his contract at the beginning of January 2014.

At the end of June 2014, he trialled with Doncaster Rovers and played for them against Bradford Park Avenue in a pre-season friendly on 9th July 2014.