The Miami Dolphins were one of the most active teams in free agency this offseason due to the amount of cap space they possessed. It goes without saying that the Dolphins hope that all of the deals they made provide them with fruitful results in 2020 and beyond.

However, over the course of their history, and similar to the other 31 teams in the NFL, Miami has had a bevy of hits and misses in free agency. Last offseason, the Dolphins' marquee signing in free agency came in the form of journeyman quarterback Ryan Fitzpatrick.

While Fitzpatrick didn't have a Pro Bowl season, he would throw for 3,529 yards, 20 touchdowns and 13 interceptions in 2019. Above all, he led a rebuilding Miami team to five wins — five more wins than media pundits believed the Dolphins would amass.

Fitzpatrick's addition last offseason can be considered a success considering the circumstances. On the other hand, Miami has had a ton of failed signings over the years. With that in mind, let's take a look at the Dolphins' five worst free-agent signings of all time.

5. Ernest Wilford

Ernest Wilford was a mediocre wide receiver for the Jacksonville Jaguars from 2004-2007. Wilford began his career with the Jaguars as a fourth-round pick out of Virginia Tech.

Throughout his four seasons in Jacksonville, Wilford would average 35 receptions, 498 yards and three touchdowns. Then, after his four years with the Jaguars, Wilford would sign a four-year, $13 million deal with the Dolphins in 2008.

Despite the expectations he had, Wilford finished with a mere three receptions for 25 yards in his lone season in Miami. Given his lack of production, Wilford would be released by the Dolphins in 2009.

4. Gibril Wilson

In the 2009 offseason, the Dolphins were searching for a safety to be a complimentary piece to Yeremiah Bell. As a result, Miami ended up agreeing to a multi-year contract with Gibril Wilson.

Before his arrival to Miami, Wilson was a solid safety for the New York Giants from 2004-2007. Throughout his four seasons with the Giants, he would combine for 27 pass breakups, 11 interceptions, and six forced fumbles.

After a one-year stint with the Oakland Raiders (now Las Vegas Raiders), Wilson would sign a five-year, $27.5 million contract with the Dolphins. Even though Miami had long-term goals for Wilson, he would be released in 2010 after having seven pass breakups and zero interceptions in 2009.

3. Mario Williams

Mario Williams would be taken with the No. 1 pick in the 2006 NFL Draft by the Houston Texans. Coming out of North Carolina State, Williams was expected to become a premier edge rusher in the NFL.

During his six years with the Texans, Williams would accumulate a total of 53 sacks and 11 forced fumbles. Following a productive tenure with Houston, Williams proceeded to sign with the Buffalo Bills. With the Bills, Williams would be phenomenal, notching a total of 43 sacks in four seasons.

After seeing him dominate them twice a year, the Dolphins signed Williams to a two-year, $17 million deal in 2016. The former No. 1 pick would record just 1.5 sacks before the Dolphins cut him after the 2016 campaign.

2. Jake Grove

When the Dolphins finalized a deal with Jake Grove in 2009, they believed they hit the jackpot. However, it didn't take long for Miami to realize they made a mistake by signing the interior offensive lineman.

Before he joined the Dolphins, Grove spent his first five seasons with the Raiders. As a second-round selection in the 2004 NFL Draft, Grove would have injury concerns, missing 26 games in his five years.

Nevertheless, Miami threw a four-year contract worth $28 million — including $14 million in guarantees — at the Virginia Tech product. Just like his time with the Raiders, Grove would miss four games in 2009 with the Dolphins and would be released in 2010.

1. Mike Wallace

Last but not least, Mike Wallace comes at No. 1 on this list for multiple reasons. First and foremost, the contract he received back in 2013 was definitely a head-scratcher. At the same time, Wallace didn't live up to expectations, and he was a headache in the locker room.

In his first four seasons in the NFL, Wallace became a lethal vertical threat with the Pittsburgh Steelers. His 17.2 yards per reception and 32 touchdowns was enough for the Dolphins to hand him a $60 million contract over five years with half of the deal being guaranteed.

Amid what ultimately became just two years with the Dolphins, Wallace would haul in 140 receptions for 1,792 yards and 15 touchdowns. Despite his decent numbers, he caused issues in the locker room in Miami and the Dolphins traded him to the Minnesota Vikings in 2015.