Mason, of 35 years and considered one of the best receivers this decade, had declared in March, the official website of the NFL league slatted considered leaving, but would also like to play two or three years more.He had one more year of contract.
However, this made the announcement Monday of his farewell.
"After 12 years, I have seen everything and done everything," Mason said at a sports Internet portal. "Now, I'm happy with the decision that I am taking. All good things come to an end and I'm ready to see that is what gives life. "
After playing his first eight seasons with the Tennessee Titans to the Super Bowl XXXIV dispute in January 2000, Mason came to Baltimore in 2005 and amassed 790 receptions in his career, with 10.061 yards and 52 touchdowns.
In 2008, he became the 31st player in league history to exceed 10,000 yards in receptions to lead the campaign caught 80 passes for 1.037 yards and a major factor for the Baltimore contest the Championship Game AFC. In three playoff games, added 12 receptions for 190 yards and a touchdown.
However, until this Tuesday, Mason had not made his official announcement to his team or the league. Any player wishing to withdraw must send a letter to the NFL to inform its decision.
"I've earned enough money, more than enough money," said Mason, who was entering the final year of his contract.

After completing 24 of 30 days in jail for his initial ruling, the receiver open the Cleveland Browns, Donte Stallworth left the prison in Miami.After roll your car to a man named Mario Reyes, 59 years old, last March 14 and checked after driving under the influence of alcohol, Stallworth opened the first part of his sentence which was 30 days of prison, but he was released six days before the end of the Turner Guilford Knight Correctional Center on Friday afternoon.
The recipient of 28 years old, who remains suspended indefinitely by the NFL has yet to meet with eight years of probation, two years of house arrest and 1,000 hours of community service.
The former player of the New England Patriots, Philadelphia Eagles and New Orleans Saints appeared to have secured the future after he signed before the 2008 season, a contract for seven years and $ 35 million with Cleveland, but injuries limited to only 17 receptions, 170 yards and a touchdown.
British Open odds are out for the 138th Open, which tees off Thursday at Turnberry, and it’s no surprise that Tiger Woods is the one to watch. However, Irishman Padraig Harrington has won the last two years, and there’ll be a number of European golfers looking to keep the Claret Jug off of American soil. Here are the five to watch.British Open odds – Thursday, 2:30 PM ET
1) Padraig Harrington – This is more of a courtesy to the champion, who has British Open odds of +2200 to defend his title. However, Harrington is having an awful season despite his win at the Irish PGA Championship (which isn’t as prestigious as it sounds), as swing changes have turned his game around, and not for the better. Stay away from him when making your sports picks this week.
2) Rory McIlroy – The 20-year-old from Northern Ireland finished T-42 as an amateur at Carnoustie in 2007, and he is coming off a solid 10th-place finish at the US Open. Links golf is right up McIlroy’s alley, and the phenom has golf betting odds of +2200, alongside the champ.
3) Ian Poulter – The Englishman was second in last year’s Open, and he’s finished in the top 20 at The Masters and the US Open this season. The 33-year-old has been having a very consistent season, which is why betting services have rated him at +2800 this weekend.
4) Lee Westwood – The 36-year-old Ryder Cup veteran is coming off a 23rd-place result at the US Open and he’s struggled with the Claret Jug on the line recently with one missed cut and three finishes outside the top 30 since coming in fourth in 2004. Still, he’s been playing well overseas and with British Open odds of +2800, he could be worth a shot.
5) Martin Kaymer – Who? The 24-year-old German has won his last two tournaments, including a playoff win over Westwood two weeks ago. Kaymer finished 80th in his lone British Open appearance in 2008 and missed the cut in both The Masters and the US Open, but momentum is a crazy thing in sports, so you may want to take a chance on him in your offshore sportsbook.