Best Ball leagues are becoming increasingly popular. In this season-long format, participants draft one roster for the entire year, and the top-scoring players each week count towards your totals. There are no transactions, matchups or weekly lineups. That means nailing your draft is absolutely critical, so before going on the clock in any Best Ball leagues, you need to see what SportsLine's highly-rated expert Jacob Gibbs has to say.

Gibbs uses a data-driven approach that has helped him consistently provide accurate rankings at every position. He has proven to be one of the nation's most accurate Fantasy rankers in recent years -- posting the eighth-most accurate results over the past few seasons, according to Fantasy Pros.

Now Gibbs has released his 2023 Fantasy football Best Ball rankings for SportsLine members. Gibbs says that in Best Ball, drafters should be more concerned with the top of a player's range of outcomes, particularly on a weekly basis. Gibbs targets high-upside players who can deliver league-winning upside if things break in their favor.

We can tell you that targeting Baltimore tight end Mark Andrews and stacking him up with quarterback Lamar Jackson is a big part of Gibbs' Best Ball strategy. "Baltimore's offense could produce significantly more pass attempts under Todd Monken's direction, and the per-route data has always been fantastic for Mark Andrews. At the top of his range of outcomes, Andrews could finish ahead of Travis Kelce and post a historically high-scoring season. If the Jackson-Andrews connection produces like it is capable of, that stack is going to give you such a huge leg-up on your opponents at the QB and TE positions."

Gibbs is also calling for a rookie wide receiver to be worthy of a top 25 slot in his Fantasy football best ball rankings! This pick could be the difference between winning BIG and going home with nothing.

So which players should you build your Best Ball rosters around? And which overlooked tight end do you need to jump on late in drafts? ... Join SportsLine here to see complete Fantasy football best ball rankings, all from one of the nation's most accurate rankers!