Di Natale's previous deal would have expired next year but his new deal will take the Italy striker through until the end of the 2013/14 season.
A statement from Udinese read: "Udinese Calcio announces, with satisfaction, that it has extended the agreement with captain Antonio Di Natale for a further season.
"The contract will expire on June 30, 2014."
The 34-year old forward was pivotal in helping Udinese clinch third spot in Serie A last season, finishing as the top Italian scorer in the league with 23 goals.
Di Natale was a member of the Italy Euro 2012 squad that finished as runners-up, and was notable for scoring the only goal conceded by eventual champions Spain in the whole tournament, in a 1-1 draw between the sides in the group stage.
The Liverpool 2013/14 soccer jersey is available for pre-order. The Reds are eager to compete for silver next season.
The Juventus jersey for the 2013/14 was released earlier this week. Be the first to wear the colors of the Old Lady.
Bayern Munich are kings of Germany and hope to be crowned kings of Europe at Wembley later this month!
adidas has added some color to the Predator line with this new colorway. Released on May 17. Be the first to own a pair.
One of the top soccer cleats for control the Nike CTR360 will not let you down on the field in tight spaces.
Ajax has released their away soccer jersey for the 2013/14 season. Get in the Gear.
The new PUMA evoSPEED 1.2 FG. A great new soccer cleat with classic look and first time for PUMA to be on the cleat.
The push for more color on their cleats, adidas has added the infrared colorway to the adiZero f50 Line.
Borussia Dortmund hears Wembley Calling and are headed to London for the Champions League final.
Chelsea won the Europa League on Wednesday. The Blues defeated Benfica 2-1 on injury time goal from Ivanovic.