Collecting football cards has been a beloved hobby for generations of NFL fans. Everyone knows the famous rookie cards that sell for millions - Joe Namath, Johnny Unitas, Joe Montana. But there are also many underrated rookie cards out there that can be solid additions to your collection without breaking the bank. Let's look at 5 of the most underrated NFL rookie cards that every collector should know about.

1. Drew Brees (2001)

Drew Brees has put together a Hall of Fame career with the New Orleans Saints, including a Super Bowl championship in 2009 where he was named MVP. However, way back in 2001 when Brees was drafted by the San Diego Chargers, there were serious doubts about his NFL future.

At just 6 feet tall, Brees was considered too short to be an effective starting QB. As a result, his 2001 rookie cards can easily be found for under $20. Even his 1st Bowman Chrome refractor sells for around $50-60 in PSA 10 gem mint condition.

Considering Brees' legendary career and likely future Hall of Fame gold jacket, his rookie cards look like a steal right now. Who cares if he's not 6'5"? Brees can sling it with the best of them, and his early cards will only go up from here.

2. Richard Sherman (2011)

Say what you want about Richard Sherman, but the guy has been one of the NFL's top cornerbacks for a decade strong. He was a key member of Seattle's dominant Legion of Boom defense that won Super Bowl XLVIII.

But as a 5th round pick out of Stanford in 2011, nobody expected Sherman to achieve this level of greatness. As a result, his 2011 Topps Chrome and Bowman Chrome rookie cards can routinely be found for under $10 in PSA 10 condition. That's wild value for a likely future Hall of Famer.

Grabbing Sherman's rookie cards now would be very wise. Despite his polarizing personality, his on-field skills are indisputable. Once he retires, his rookie cards will explode.

3. Jared Allen (2004)

Jared Allen was a human highlight reel at defensive end, racking up 136 career sacks over 12 seasons. He was one of the most feared pass rushers of his era.

However, Allen was drafted in the 4th round out of a small school (Idaho State), so he flew under the radar as a rookie in 2004. His 2004 Playoff Contenders rookie ticket can be bought for around $15-20 in PSA 10 condition.

For a ferocious defender of Allen's caliber, that's crazy cheap. Allen should eventually make the Hall of Fame too, which will send his rookie cards soaring. Stash some away!

4. Zach Thomas (1996)

Zach Thomas spent 13 seasons starring at middle linebacker for the Dolphins and Cowboys. He made 7 Pro Bowls and was named 1st team All-Pro 5 times.

Yet back in 1996, Thomas was the 154th overall pick out of Texas Tech. Despite clearly outplaying his draft position, his 1996 cards remain dirt cheap. His Topps Chrome refractor can be found for under $20 in PSA 10.

Thomas was the heart and soul of those Dolphins defenses in the early 2000s. His gritty playstyle made him a fan favorite across the league. When he makes the Hall of Fame, his overlooked rookie cards are sure to take off.

5. Terrell Davis (1995)

Terrell Davis had one of the most dominant 4-year stretches by any running back in NFL history from 1996-1998. He made the All-Pro team all 4 seasons, won 2 Super Bowls with the Broncos, and was the NFL MVP in 1998 after rushing for over 2,000 yards.

Yet injuries derailed TD's career early, so his rookie cards remain surprisingly affordable. His 1995 Bowman's Best atomic refractor is an especially cool card that can be found for around $50-75 in PSA 10 condition. Not bad for an all-time great back!

Once Terrell Davis makes it into Canton (which should happen soon), his early cards will explode. Take advantage of the low prices while you still can on this underrated HOFer.

Key Takeaways

• Drew Brees' small stature made his early cards undervalued, presenting a big opportunity now.
• Richard Sherman's personality rubs some the wrong way, but his shutdown corner skills are undeniable.
• Lesser-known players like Jared Allen and Zach Thomas remain cheap despite their stellar careers.
• Injuries shortened Terrell Davis' brilliance, but his accomplishments were worthy of Canton.
• Identifying underrated rookie cards of future Hall of Famers can prove very lucrative down the road!

So there you have it - 5 overlooked NFL rookie cards that are primed to take off in value. Building a well-rounded football card collection means digging beyond just the iconic rookie cards everyone knows. Hopefully this list provides some new names to target for both fun collecting and future profits! Let me know if you spot any other underrated rookie cards I should keep an eye on!