14093716-standard (1).jpg

Lions general manager Martin Mayhew has pulled off one of the biggest trades of his tenure in Detroit, obtaining All-Pro Haloti Ngata from Baltimore.

(Mike Mulholland | MLive.com)

The NFL isn't exactly known for blockbuster trades these days, but there were a flurry of them during the first day of free agency.

And the Detroit Lions joined the party.

They acquired All-Pro defensive tackle Haloti Ngata in a huge trade with the Baltimore Ravens. They also received a seventh-round pick.

Detroit sent its fourth- and fifth-round picks in this year's draft to Baltimore to complete the deal.

Martin Mayhew has now executed 28 trades in his six-plus years as the Lions' general manager. Much of that action came early in his tenure, when he pulled the trigger on six trades in 2009 and 10 in 2010.

Mayhew's had some great ones, like dealing Roy Williams to the Cowboys for three draft picks -- one of which was used to select Brandon Pettigrew, who has started at tight end most of the past six years for Detroit. Williams has been out of football since 2011.

There have been bad ones too, like trading a fifth-round pick to Jacksonville for receiver Mike Thomas in 2012. Thomas caught just five balls that year, never really fit in and was released the following offseason.

But none of Mayhew's trades have involved a bigger name than Ngata, a five-time All-Pro selection who helped anchor Baltimore's vaunted defense for much of the past decade.

He'll replace Ndamukong Suh, who reportedly will sign a $114 million deal with the Miami Dolphins, as the anchor of Detroit's defensive line.

Here's a look at Mayhew's history on the trade market:

10/14/08: Lions acquire Dallas' 2009 1st-rounder (TE Brandon Pettigrew), third-rounder (WR Derrick Williams), and sixth-rounder (RB Aaron Brown) in exchange for WR Roy Williams and 2009 seventh-rounder (later traded to Falcons).

3/16/09: Lions acquire Seattle LB Julian Peterson in exchange for DT Cory Redding and a 2009 fifth-rounder (later traded to Eagles).

4/26/09: Lions acquire Jets' 2009 third-rounder (LB DeAndre Levy) fourth-rounder (DT Sammie Lee Hill) and seventh-rounder (OT Lyndon Murtha) in exchange for third-rounder (RB Shonn Greene).

4/26/09: Lions acquire Broncos 2009 seventh-rounder (LB Zack Follett) and 2010 fifth-rounder (later traded to Browns) in exchange for 2009 6th round pick (QB Tom Brandstater).

7/1/09: Lions acquire WR/PR Dennis Northcutt from Jacksonville in exchange for S Gerald Alexander.

9/4/09: Lions acquire S Ko Simpson from Buffalo in exchange for a 2010 seventh-round pick (QB Levi Brown).

9/7/09: Lions acquire a 2011 seventh-round pick from New York Jets (later traded to 49ers) in exchange for QB Kevin O'Connell.

3/6/10: Lions acquire DT Corey Williams and a 2010 seventh-round draft pick from Cleveland (later traded to Vikings) in exchange for a 2010 fifth-round pick (later traded to Eagles).

3/13/10: Lions acquire CB Chris Houston from Atlanta in exchange for a 2010 sixth-rounder (S Shann Schillinger) and a 2011 seventh-rounder (OG Andrew Jackson).

3/16/10: Lions acquire QB Shaun Hill from San Francisco in exchange for a 2011 seventh-rounder (later traded to Packers).

4/6/10: Lions acquire Seattle G Rob Sims and a 2010 seventh-rounder (DE Willie Young) in exchange for DE Robert Henderson and a 2010 fifth-rounder (S Kam Chancellor).

4/20/10: Lions acquire TE Tony Scheffler from Denver in a three-team trade that sent LB Ernie Sims to Philadelphia.

4/22/10: Lions acquire Minnesota's 2010 first-rounder (RB Jahvid Best) and fourth-rounder (OT Jason Fox) in exchange for their picks in second (CB Chris Cook) fourth (DE Everson Griffen) and seventh rounds (TE Mickey Shuler).

4/24/10: Lions acquire 2011 sixth-round pick from Philadelphia (later traded to Broncos) in exchange for a 2010 seventh-round pick (LB Jamar Chaney).

8/19/10: Lions acquire Seattle DE Lawrence Jackson for a 2011 sixth-rounder (CB Byron Maxwell).

8/31/10: Lions acquire Seattle's 2012 seventh-rounder (later traded to Browns) for T Tyler Polumbus.

9/6/10: Lions acquire Denver CB Alphonso Smith and 2011 seventh-rounder (later traded to Seattle) in exchange for TE Dan Gronkowski and a 2011 sixth-rounder (later traded to Packers).

4/29/11: Lions acquire Seattle's 2011 second-rounder (RB Mikel Leshoure), fifth-rounder (LB Doug Hogue) and seventh-rounder (OT Johnny Culbreath) in exchange for a third-rounder (OG John Moffitt) fourth-rounder (WR Kris Durham), fifth-rounder (CB Richard Sherman) and seventh-rounder (DE Lazarius Levingston).

4/28/12: Lions acquire San Francisco's 2012 fourth-rounder (DE Ronnell Lewis) and sixth-rounder (CB Jonte Green) in exchange for a 2012 fourth-rounder (OG Joe Looney).

4/28/12: Lions acquire Minnesota's 2012 fifth-rounder (LB Tahir Whitehead) and seventh-rounder (LB Travis Lewis) in exchange for 2012 seventh-rounder (DE Trevor Guyton) and 2013 fourth-rounder (later traded to Patriots).

4/28/12: Lions acquire Oakland's 2012 fifth-rounder (CB Chris Greenwood) in exchange for 2012 fifth-rounder (DE Jack Crawford ) and seventh-rounder (LB Nathan Stupar).

10/31/12: Lions acquire WR Mike Thomas from Jacksonville in exchange for a 2014 fifth-rounder (later traded to 49ers).

4/27/13: Lions acquire Baltimore's 2013 fifth-rounder (P Sam Martin) and sixth-rounder (RB Theo Riddick) from Baltimore through Seattle in exchange for 2013 fifth-rounder (DT Jesse Williams).

8/26/13: Lions acquire LB Chris White from Buffalo in exchange for QB Thaddeus Lewis.

5/9/14: Lions acquire Minnesota's (via Seattle) 2014 second-rounder (Kyle Van Noy) and fifth-rounder (later traded to Dallas) in exchange for 2014 second-rounder (WR Paul Richardson), fourth-rounder (later traded to Seattle) and seventh-rounder (RB Kiero Small)

5/10/14: Lions acquire Dallas' 2014 fifth-rounder (DT Caraun Reid) and seventh-rounder (K Nate Freese) in exchange for 2014 fifth-rounder (WR Devin Street).

3/10/15: Lions acquire DT Haloti Ngata and Baltimore's 2015 seventh-rounder (later traded to Tampa Bay) in exchange for 2015 fourth- and fifth-round picks.

4/15/15: Lions acquire Tampa Bay's 2015 fifth-round pick in exchange for DE George Johnson and 2015 seventh-round pick.

-- Download the Detroit Lions MLive app for iPhone and Android

-- Follow Kyle Meinke on Twitter

-- Like MLive's Detroit Lions Facebook page