San Fransisco 49ers wide receiver Emmanuel Sanders will turn 33 years old next month. At that age, many receivers lose a step and aren't always the players they used to be. However, if you're thinking that Sanders feels the same way, you're wrong.

The Niners wideout took to Twitter on Tuesday to address all of his doubters.

Emmanuel Sanders is set to become a free agent this offseason and could possibly be joining his third team in two seasons. The former Bronco signed a three-year, $33 million deal with the team in September of 2016.

The two-time Pro-Bowler started 2019 as a member of the Denver Broncos, and in seven games for Denver this season, the 5-foot-11 receiver recorded 30 catches for 367 yards and two touchdowns.

Sanders and a fifth-round pick were then traded to the 49ers in October in exchange for a third and fourth-round pick.

In 10 games (nine starts) with San Fransisco, the veteran pass-catcher reeled in 36 balls for 502 yards and three touchdowns.

Despite playing only 10 games with the AFC champions, Sanders' 502 was third on the team behind All-Pro tight end George Kittle and rookie Deebo Samuel.

And despite his age, Sanders has proven himself to still be an effective weapon. If he doesn't re-sign with San Fransisco, Sanders will undoubtedly generate a big amount of interest from receiver-needy teams across the league.

As a testament to his production in his 10th NFL season, Sanders' 869 total receiving yards in 2019 ranked second among players 32 years old or older behind only Julian Edelman of the New England Patriots.