If you collect football cards then the 1981 Topps Joe Montana rookie card is an absolute must have.

Not only is it one of the most valuable football cards of the 1980's, it's one of the most expensive of all-time.

Montana didn't possess the strongest arm but what he did better than anyone else was manage the game with consistency and accuracy and find ways to win. Having Jerry Rice on his team sure didn't hurt either.

His ability to remain calm under pressure and drive his teams to countless fourth quarter victories earned him nicknames such as "Joe Cool" and "The Comeback Kid".

That reputation earned him a place as one of the most popular players of all times and his cards are some of the most highly collected as a result.

Items of Yankee legends are always popular among sports collectors and Yogi Berra baseball cards are no exception.

One of the most well-known names in baseball history, he also became a cultural icon for his funny sayings like "the future ain't what it used to be" and "I never said most of the things I said".

Born Lawrence Berra, he earned the nickname "Yogi" from a childhood friend who thought he looked similar to an Indian yogi he saw during a movie.

Yogi went on to be one of the best (if not the best) catchers and most feared hitters of all-time. A 3-time MVP, 15-time All-Star and member of 10 World Series championship teams, Berra's place in baseball history is forever cemented.

Here is a list of the 22 best Yogi Berra cards that any serious collector should pursue.

If you collect Gale Sayers football cards then you know one thing’s for sure:

There just aren’t too many of them to collect.

The legendary “Kansas Comet” had a dominant but short career. Hence, the relatively low number of Sayers cards to collect.

Sayers was not a bruiser. He was a graceful back who possessed an uncanny ability to find running lanes and make tough cuts. Sports writers even dubbed him “the football version of the three-card monte“.

Fortunately for collectors, his cards are not as elusive as he was.

Larry Bird basketball cards continue to be extremely popular among sports card collectors.

Larry Legend was just that: a basketball legend.

For thirteen seasons, Bird put his heart and soul into the game and put fear into every other team. When all was said and done he'd win 3 NBA championships, 3 MVP awards and be named to 12 All-Star teams.

Because of this, he's one of the most popular players of all-time and one of the most highly collected in the basketball card hobby.

Appearing on Topps, Hoops, Fleer, Skybox and Upper Deck issues over the years, there are several key Larry Bird cards that any serious collector should own.

Here is a list of his top cards that you should consider for your collection.