Fantasy Baseball Waiver Wire Week 4: Top options to consider at each position in standard and deeper leagues

Yankees pitcher Nestor Cortes was rostered in only about half of CBS Fantasy leagues prior to absolutely dominating the Orioles on Sunday, when he struck out 12 batters in just five scoreless innings while allowing three hits and one walk. Now Cortes is rostered in four out of five leagues and many managers are left wishing they would've snagged him late in preseason drafts or after his first start. But here, we're focused on finding the next Cortes and other players at each position who are widely available and can help your Fantasy teams moving forward.

Before you determine which players you should target on the Fantasy baseball waiver wire ahead of Week 4, you NEED to see what R.J. White has to say.

If you're a regular subscriber to SportsLine, you probably know White from dominating NFL picks for years, but did you know he actually got his start in sports media as a fantasy baseball analyst? He even finished No. 1 among all experts for his draft rankings the first year FantasyPros tracked MLB expert accuracy on their site. White has continued to excel at season-long and dynasty Fantasy baseball formats, and this year he's sharing his Fantasy baseball expertise with SportsLine subscribers.

Now, he's revealed the best widely available free agents ahead of Week 4. One player to target on the Week 4 waiver wire: Athletics pitcher Paul Blackburn. "The results continue to be promising; he's struck out 14 batters through three starts while walking only one in 15 innings," White said. "The next step will be working further into games after lasting exactly five innings in each of his first three starts, but he's quickly jumped on the Fantasy radar over the first two weeks of the season."

White is also all-in on a barely rostered reliever with MASSIVE upside! You ABSOLUTELY need to see who it is before making any Week 4 waiver wire claims.

So which starting pitchers are worth scooping off the waiver wires in all leagues? And which widely-available players at each position are options to consider in deeper leagues? ... Join SportsLine right now to see R.J. White's waiver wire picks for Week 4, all from a proven Fantasy baseball analyst!