San Francisco 49ers linebacker Aldon Smith spoke out for the first time since his arrested for making a false bomb threat at Los Angeles International Airport.

Smith, drafted seventh overall in 2011, remains a productive player. He has also consistently found trouble away from the field.

"Stay positive and always give your best effort,eventually you will overcome your immediate problems and find you are ready for greater tests," Smith said via Twitter.

Arrested April 13 at LAX, Smith posted $20,000 bail but remained quiet until Monday night. He is permitted to work out with the 49ers in their offseason program and has not been disciplined by the NFL while the county attorney weighs bringing formal charges against Smith for the airport incident.

---Minnesota Vikings general manager Rick Spielman is not pondering a trade involving quarterback Christian Ponder leading up to the NFL Draft this week, saying Tuesday that there are no plans to trade the team's 2011 first-round pick -- at least during the draft.

The 26-year-old Ponder has not met expectations the past three years and the Vikings seemingly are in line to draft a potential replacement. Veteran Matt Cassel is the frontrunner to be the starting quarterback for the 2014 season. Spielman also denied having any discussions with the St. Louis Rams about quarterback Sam Bradford.

The Vikings already announced that they were not picking up the fifth-year option on Ponder's rookie contract that would have paid Ponder $9.686 million in 2015.

---The Washington Redskins released safety Tanard Jackson on Tuesday before he was reinstated by the NFL after multiple violations of the league's substance abuse policy.

The 28-year-old Jackson never played a game for the Redskins after he was picked up in 2012 after his release by the Tampa Bay Buccaneers. He last appeared in a game in 2011 before his second league suspension.

Jackson started 44 games for the Buccaneers from 2007 to 2009 before he received his first suspension. In 56 career games, he has 239 tackles, 10 interceptions and five forced fumbles.

---Seattle Seahawks safety Kam Chancellor underwent hip surgery about a month ago and hopes to be recovered in time for the preseasson, according to an report on Tuesday.

ESPN first reported in March that Chancellor was scheduled for minor surgery, but he denied it on Twitter then, saying "Huh? No surgery here." Seahawks general manager John Schneider refused to discuss the topic during questioning this week.

A fifth-round NFL draft pick in 2010 out of Virginia Tech, Chancellor developed into one of the top strong safeties in his first three years in the league. He was named to the Pro Bowl the past two seasons and had an interception and nine tackles during the Seahawks' Super Bowl victory over the Denver Broncos in February.

---The Tampa Bay Buccaneers will induct former linebacker Derrick Brooks into the team's Ring of Honor and retire his No. 55 at a halftime ceremony during a Sept. 14 game against the St. Louis Rams, the team announced Tuesday.

Brooks will join Hall of Fame defensive end Lee Roy Selmon, former coach John McKay, former Pro Bowl tight end Jimmie Giles, former All-Pro tackle Paul Gruber and Hall of Fame defensive tackle Warren Sapp in the Ring of Honor. Brooks's jersey will be the third retired by the team. Selmon (No. 63) and Sapp (No. 99) are the others.

This summer, Brooks will be inducted into the Pro Football Hall of Fame in Canton, Ohio. He was elected in January during his first year of eligibility.

During a 14-year NFL career, Brooks was part of a Super Bowl championship team and was named to a club-record 11 Pro Bowls. The 2002 NFL Defensive Player of the Year ranks first in team history in tackles with 2,198 and second in games played with 224 and starts with 221. He also finished with 25 interceptions and 13 1/2 sacks.

---Washington Redskins backup quarterback Kirk Cousins remains on the trade block.

General manager Bruce Allen said Tuesday that no discussions with suitors have taken place. That's in harmony with new coach Jay Gruden's assessment in March that all was quiet on the Cousins trade front.

Cousins became eligible to be traded March 11. He has told the Redskins he believes he is ready to start, but the team already declared in January that Robert Griffin is the starter. Cousins has played eight games, including four starts, in his two-year career.