Monitoring bullpens in 2020 will be a vital task each and every day. Because of this, we'll be publishing a weekly article at RotoBaller that tracks which bullpens are being taxed and which pitchers within that bullpen are being heavily used.
The idea of this column is to help you gain an inside track into which relief pitchers, closers, and setup men should be avoided or targeted in a given week of fantasy baseball.
As always, we'll be closely tracking bullpen updates every day in our Closer Depth Charts. That is definitely a resource you want to bookmark and visit each day to stay up-to-date with the latest bullpen changes and movements.
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Around the American League
New York Yankees - Aroldis Chapman is back. He threw 20 pitches on Monday. Zach Britton has been one of the best closers in baseball, yet he may only have the job for another week at the most as Chapman gets his sea legs. Whenever the swap is made, Britton immediately becomes an elite holds guy.
Toronto - Rafael Dolis has pitched in two straight heading into Tuesday. Anthony Bass returned to the mound after being dinged up and only threw 14 pitches. He may need another day to rest and recover back to full health, but Bass should be back to closing in no time.
Chicago White Sox - Alex Colome hasn't pitched in a while, but all of his supporting arms may need rest. Zack Burdi, Steve Cishek, Jimmy Cordero, Ross Detwiler, Evan Marshall, and Jose Ruiz all have appeared in two of the last three days.
Cleveland - Everyone should be available Tuesday, but all of Cam Hill, James Karinchak, Dominic Leone, and Nick Wittgren pitched at least two of three days to start the week. Anyone who gets action will need another day of rest immediately following.
Minnesota - The Twins bullpen has been well worked. Sergio Romo and Taylor Rogers both pitched in two straight before a day off Monday. Trevor May and Tyler Clippard pitched in two straight now. Minnesota will have to stagger returns in order to not be without everyone at the same time.
Houston - Ryan Pressly got into two straight games before needing a day off, though he only threw 18 total pitches. The rest of the bullpen seems to be rounding into form as the Astros needed to pull a quick restart on their reliever depth. Blake Taylor, Josh James, and Brooks Raley seem like the new go-to arms in front of Pressly. Taylor has gotten into two straight games now; James and Raley both pitched in two of three. None of these guys were on the radar (James was a starter) before injuries decimated the unit. Now they are being leaned on in a major way.
Los Angeles Angels - All of Ty Buttrey, Felix Pena, and Keynan Middleton have pitched in two of the past three days. Hansel Robles also got back into the action with a scoreless outing. The team may be forced to turn back to Robles at least for one outing as the rest of the bullpen rests up.
Oakland - T.J. McFarland has taken the mound in three of the past four days. The Athletics have plenty of other options late in games, so McFarland's holds chances could be lacking this week.
Around the National League
Atlanta - Will Smith pitched in two of the past three. Shane Greene pitched in two straight before a day off. Mark Melancon already got a couple days of rest last week; now it's likely Smith's and Greene's turn for at least a day.
Washington - Tanner Rainey has looked good but has thrown in two straight games, including needing 29 pitches in the most recent outing. Daniel Hudson secured the team's closer role, and then has decidedly not looked good, getting rocked in multiple outings. He has also pitched in two straight. With Will Harris throwing 25 pitches on Monday, and Sean Doolittle sidelined, we could see a surprise save from someone like Javy Guerra. Guerra's 22.2 percent K-rate has been a career-best; as has his 5.6 percent walk rate.
Chicago Cubs - Jeremy Jeffress has gotten into two of the past three. With Jeffress needing a blow, Craig Kimbrel may very well get another save chance after two clean outings for himself.
Milwaukee - David Phelps has been moving up the responsibility ladder. He's pitched in two straight, though, before a day off. Devin Williams is moving into that third option, with two holds in the last four days. Everyone still looks up at Josh Hader, but Hader has thrown a lot of pitches recently. An appearance every other day in the span of four days saw him need 60 pitches in just two outings.
St. Louis - With the Cardinals finally back in action, Andrew Miller and Giovanny Gallegos have both been used heavily, pitching in two of three games. If both need a day off this week at the same time, it is hard to tab a replacement. Genesis Cabrera and John Gant have also both pitched in two of three days. Kwang Hyun Kim moved to starter and threw 57 pitches Monday. Expect St. Louis to stagger days off the next few days to avoid losing multiple guys. More importantly, Miller seems to be ahead of Gallegos in closer pecking order. There isn't much to read into that statistically yet. Neither guy has even thrown four total innings.
Arizona - Archie Bradley pitched in two straight before a day off. One more outing could force him to the bench again this week.
Colorado - Carlos Estevez pitched in two straight games, recorded a save, got banged up, and is a question mark. Yet the rest of the Colorado pen has been scuffling as well. Jairo Diaz now has a 2.07 WHIP; Daniel Bard has given up runs in two straight; Tyler Kinley has five walks in his last two innings, which included getting blasted for five runs last week. The starters have been amazingly good thus far, but recent bullpen outings put into question who Bud Black can count on.
Los Angeles Dodgers - Kenley Jansen pitched in three of four days, nabbing a save in each. He will get some much needed rest. Perhaps Jake McGee, well rested and pitching very well, gets a vulture save this week. He currently sports a 33.3 percent K-BB rate and has a .071 BAA. Pedro Baez has been getting eighths and will also be an option.
San Francisco - Tony Watson pitched in three of four. The same goes for Tyler Rogers and Trevor Gott. Gott will need rest but has also been rocked recently. Watson is the best bet to get a save chance this week. He has pitched as often as the other late-innings guys but threw only nine and seven pitches respectively in two of those outings.