Buy or Sell: Up, Upton, and away

Here are two players you should buy with their value steadily on the rise, and two players you should sell before their stocks dip.

Buy

SP CC Sabathia, New York Yankees

While off-season issues and a DL stint suppressed ownership and intrigue, Sabathia has actually been quite good all season long. With eight quality starts and a 2.20 ERA, Sabathia even ranks inside the top 40 of fantasy pitchers despite pitching only 65 1/3 innings.

Though doubters will point to a minuscule 3.1 percent HR/FB ratio as a time to sell, Sabathia has been great at suppressing the long ball for much of his career. From 2002 - 2011, Sabathia only allowed his HR/FB ratio to hit double-digits once. Strengthening this point, Sabathia's 2016 contact rates best compare with 2010 and 2011 - both years his HR/FB mark sat under nine.

OF Justin Upton, Tigers

Flipping the calendar to June seems to have awoken Upton. His average for the month is up to .268 and he's also driven in 12 runs; from April to May, Upton had combined for just 11. A contributor to this turn around has been the recent reduction in his strikeout rate. After posting a frightening mark of 36.5 percent prior to June, Upton is down to 25.8 for the month.

The recent injury to fellow Detroit outfielder J.D. Martinez may also have a positive impact for Upton. The loss of Martinez should move Upton up to the fifth spot after batting sixth or seventh for nearly all of June. As a result, an increase in RBIs seems likely.

With his June statistics looking more like his career marks, another two weeks of improved play should cement Upton's return to functional fantasy form.

Sell

SP Jaime Garcia, Cardinals

With injuries limiting Garcia to less than 60 innings for both his 2013 and 2014 campaigns, and having only surpassed 150 innings once in his seven-year career, Garcia has always been a volatile asset.

This year, injury and arm fatigue may be catching up to the delicate ground ball-inducing lefty. Garcia has just two quality starts in his past six outings and has only eclipsed the 90-pitch mark twice in his past eight.

Garcia's GB/FB ratio and linedrive percentage also stand out as points of concern. This year, Garcia's LD percentage sits at 20.7, just the second time it has ranked above 20 for his entire career. Likewise, his current GB/FB ratio of 2.75 ranks well above a career average of 2.27.

To make things worse, Garcia's recent play has been more than just bad. In his past five starts, Garcia has surrendered 17 earned runs and allowed opponents to hit .387. Those stats have been accumulated in only 25 1/3 innings of work.

3B Nick Castellanos, Tigers

Castellanos started the year on fire, notching a .363 average in April followed by socking seven homers in May. Consequently, those stats buoy his fantastic .299 average and .529 slugging percentage.

However, career marks of .265 BA and .427 SLG indicate that Castellanos' hot start may have just been a flash in the pan, and his June numbers may already be proving that correct.

Through the first 18 days of the month, Castellanos' average sits at .242 and his slugging percentage has returned to normality at .419. In combination with his career average (.265), a June BABIP of .300 gives further merit to the point that Castellanos' overall average of .299 has room to fall. It is also worth noting that Castellanos .363 average for March and April was heavily inflated by a ridiculous .464 BABIP.

Looking forward, Castellanos' value should take another knock due to the extended loss of J.D. Martinez. With Martinez out for the next four weeks, Detroit loses one of its top RBI men and Castellanos losses the bat which hit directly behind him for much of June.