Washington Nationals starting pitcher Patrick Corbin took advantage of a favorable matchup in Tuesday's 6-2 win over the Marlins. Corbin pitched 5 2/3 innings, allowing two runs on seven hits and three walks with eight strikeouts. The 35-year-old veteran has put together a modest three-game win streak in which he has allowed three total runs in 17 2/3 IP with 22 strikeouts. However, he still owns a poor 5-12 record on the season with a 5.41 ERA, a 1.52 WHIP, and a 7.12 K/9 rate in 28 starts and 153 IP. His next start will be another favorable one at the Pirates, but fantasy managers may want to avoid starting him given his low floor.

Cleveland Guardians starting pitcher Tanner Bibee improved to 11-6 in Tuesday's 7-1 win over the Royals. Bibee pitched six innings, allowing one run on two hits and three walks with six strikeouts. He also hit a batter. The 25-year-old has not pitched as well as he did his rookie season, but he still owns a solid 3.56 ERA, 1.12 WHIP, and 9.79 K/9 rate in 27 starts and 149 IP. He has been even better in the second half of the season with a 3.07 ERA in eight starts. Bibee will draw an excellent matchup in his next start at the White Sox.

Cleveland Guardians first baseman Josh Naylor (back) left Tuesday's contest early against the division-rival Kansas City Royals in the eighth inning due to an acute back spasm, according to the team. Before leaving, Naylor went 1-for-4 in the contest and was replaced by rookie Jhonkensy Noel. For now, fantasy managers should treat it as a day-to-day situation and shouldn't expect the power-hitting lefty to be back in the lineup for the series finale on Wednesday. The good news is Cleveland has an off day scheduled for Thursday, so perhaps Naylor will be ready to play again for Friday's series opener in LA against the Dodgers. Losing Naylor, who already has a career-highs in homers (29) and RBI (100) on the year, for any stretch of time would be bad news for the Guardians as they vie for the AL Central title. Noel will likely take over for Naylor at first if he misses any more time.

Toronto Blue Jays rookie outfielders Joey Loperfido and Addison Barger (knee) are both out of the starting lineup for Wednesday's series finale at Rogers Centre against the Philadelphia Phillies. Davis Schneider is in left field and batting eighth, and catcher Alejandro Kirk is serving as the designated hitter and is batting cleanup against Phillies left-hander Cristopher Sanchez. Loperfido hasn't been afforded regular playing time since joining the team at the trade deadline and has hit just .198 (18-for-91) with two homers and six RBI in his 27 games with Toronto. Barger homered on Tuesday but also left the contest early with a left- knee injury, so he should be considered day-to-day. With the Blue Jays having Thursday off, the hope is that the 24-year-old Barger can return for the series opener on Friday in Atlanta against the Braves.

Seattle Mariners closer Andres Munoz (elbow) said he has been dealing with some elbow soreness recently and that he was only going to be used with a lead for the first two games of the series in Oakland against the division-rival A's. Munoz has downplayed the severity of his injury, though, and said he should be fine. He hasn't pitched since Aug. 31, when he allowed a solo home run in two-thirds of an inning for a loss. But since blowing a save on Aug. 20 with a three-run outing, Munoz has settled down by allowing just the solo home run while striking out eight and walking two in 3 2/3 frames in his last four outings. The 25-year-old's status is worth watching going forward, and if his elbow soreness worsens, Austin Voth or Collin Snider could be in line for some save opportunities down the stretch in the final month of the regular season. Munoz has been excellent with a 1.92 ERA and a career-high 19 saves this year.