Matzek was optioned to Triple-A Albuquerque on Friday, Nick Groke of The Denver Post reports. Matzek walked 15 batters over 12 innings in his last three starts, so this doesn't come as a surprise. He probably needs some time to work things out in the minors, but the lefty could easily re-emerge as a rotation option for the Rockies, as the team isn't exactly flush with attractive alternatives.

Matzek lasted just two innings in the first game of Wednesday's doubleheader with Colorado, giving up four runs on three hits, six walks, and a home run. He struck two in the outing. Matzek battled his control throughout his brief outing, throwing just 28 of 56 pitches for strikes. It is his second six walk outing in his past three, which has to be of concern to the Rockies considering his struggles with control throughout his minor league career. Matzek might need to make some kind of adjustment mechanically or mentally to get back to throwing strikes consistently.

Matzek will start the first game of Wednesday's doubleheader against the Diamondbacks, Patrick Saunders of the Denver Post reports. The first game of the twin bill will feature Matzek versus Josh Collmenter, a matchup that was originally slated for Monday. However, rain forced the first two games of the series to be postponed.

Matzek will not pitch Tuesday against Arizona as the game has been postponed due to rain. The Diamondbacks and Rockies are planning to play a doubleheader Wednesday to make up one of the two games lost in the series due to inclement weather. Matzek, who has posted a 2.70 ERA in four starts despite a 1.55 WHIP, will likely just move back yet again and start opposite Josh Collmenter.

Matzek will start Tuesday against Arizona, Nick Groke of The Denver Post reports. Matzek's start has now been pushed back for two consecutive days and Tuesday poses problems as well since the Denver area is expecting more rain. This makes him an unstable option across all formats for Tuesday's lineups.

Matzek will not pitch against Arizona on Monday as the game has been postponed due to rain. This is the second-straight day that Matzek's start is pushed back, but he's probably still in line to pitch in Tuesday's game with Monday's postponed game to be made-up at a later date. Although, rain is in the forecast Tuesday, leaving Matzek's start in limbo yet again.

Matzek will not pitch Sunday and will instead make his next start Monday against the Diamondbacks, MLB.com's Thomas Harding reports. This is a bummer as it means Matzek won't get two starts this week and won't get to pitch in Petco Park this week. Kyle Kendrick will instead take the ball Sunday against the Padres. Matzek will be in line to make two starts next week.

Matzek (hamstring) is expected to be fine for Sunday's scheduled outing in San Diego, MLB.com reports. Matzek was removed from Monday's game against Arizona due to cramping in his left hamstring, and while he's dealt with similar issues in the past, he'll have plenty of time to recover for his next start. Matzek indicated that the cramping is more likely to occur when playing at home, due to the dry air in the Rocky Mountains. While his K:BB ratio (13:13) through four starts (20.0 innings) is somewhat concerning, the southpaw has allowed two or fewer runs in 10 consecutive outings, dating back to August of last season.

Matzek exited his start against Arizona after just 5.0 innings with cramping in his left hamstring, Zach Buchanan of The Arizona Republic reports. Matzek gave up five hits and two earned runs during his five innings, which was also accompanied by three strikeouts. He's still in a position to pick up the win although his premature exit puts the focus on his health moving forward. He's probably not in danger of missing his next start this weekend but should be considered day-to-day in the meantime.

Matzek will start Monday against the Diamondbacks, Jenny Cavnar of ROOT Sports reports. Matzek will face Chase Anderson on the road, rather than a home matchup against Tim Lincecum, as his regularly scheduled start Sunday was postponed due to weather. Any opportunity to pitch outside of Coors Field certainly bodes well for owners in deeper formats where Matzek is an option.