Hammel will undergo an MRI on his left hamstring Thursday, Carrie Muskat of MLB.com reports. Hammel left Wednesday's game with tightness in his left hamstring after just one inning. He needed just 12 pitched to retire the Cardinals. Hammel should have through the All-Star break to recover.

Hammel left Wednesday's start due to tightness in his left hamstring, Mark Gonzalez of the Chicago Tribune reports. Hammel lasted just one inning into Wednesday's start before leaving the game due to hamstring tightness. He was effective in his time on the mound, retiring the Cardinals in just 12 pitches. There's no word yet on how severe Hammel's injury is at this point, but he'll have the All-Star break to rest his hamstring.

Hammel left Wednesday's start after one inning, Gordon Wittenmyer of the Chicago Sun-Times reports. Hammel has been replaced by Clayton Richard after tossing a scoreless first inning that took just 12 pitches. There is still no word as to why Hammel had an early exit from his start, but more information should be made available before the game ends.

Hammel struck out five and walked one while holding the Marlins to two runs on four hits over seven innings in a losing effort Friday afternoon. After a pair of rain delays shortened up his previous start against the Cards, Hammel bounced back against a Marlins club without Giancarlo Stanton on Friday. Hammel continues to thrive for the Cubs, as he currently has the highest strikeout rate (25.6% K% - career 18.0%) and lowest walk rate (4.4% BB% - career 7.4%) as a big leaguer. Hammel's final start before the All-Star break is scheduled for Wednesday against the Cardinals at Wrigley Field.

Hammel endured his third loss of the season Sunday against the Cardinals, allowing four runs on six hits and a walk through just four innings. He struck out seven in the abbreviated outing. A pair of rain delays seemed to affect the 32-year-old's rhythm, as he gave up all four runs after returning from the second stoppage, which took place during the second inning. Hammel has been a very reliable member of the Cubs rotation this season, as his 2.92 ERA will indicate, and he will look to get back on track Saturday against the Marlins.

Hammel took a no decision Tuesday against the Dodgers despite throwing 7.2 shutout innings with just two hits and two walks allowed. He struck out six. Hammel induced 14 swinging strikes and 10 ground balls in 107 pitches, a gem of an outing. It took 10 innings for either team to scratch across a run, leaving Hammel without a decision since winning June 6 against the Nationals. With a 2.65 ERA and 5.75 K/BB this year, it won't take much luck for him to start racking up the victories again.

Hammel gave up three runs -- two earned -- on three hits and two walks while striking out six in only four innings Thursday against the Indians. Hammel failed to make it to the sixth inning for the second straight game as he lasted only four innings Thursday. Despite his past two outings, Hammel is having himself a fantastic season. He sports a 2.89 ERA, a 0.98 WHIP and an 86:14 K:BB ratio in 84 innings. As things stand, Hammel's next start should be Tuesday against the Dodgers.

Hammel was charged with four runs (two earns) on seven hits and three walks over five innings in a no-decision against the Reds on Friday. He walked three and struck out four. While most of the damage against Hammel came in the first inning, the right-hander labored throughout, needing 103 pitches to complete the five frames. By comparison, Hammel only needed 100 pitches to complete eight innings against Washington his last time out. He still sits with a sparkling 2.81 ERA to go along with a 0.96 WHIP and .219 BAA. As things line up now, Hammel will face the Indians in Cleveland in his next start.

Hammel won his fifth game of the season Saturday, allowing two runs on five hits and two walks over eight innings, striking out seven. It's just the second time this season he's walked more than one batter in a game. Cubs manager Joe Maddon gave him chance to go for the complete game, but after Bryce Harper took his second pitch in the ninth inning over the left field wall, Hammel's day was done. He'll take his impressive 2.76 ERA and 76:9 K:BB ratio into his next start at home on Friday against the Reds.

Hammel gave up just one run on five hits in 6.2 innings of work to earn the win against Miami on Monday. Hammel was absolutely brilliant on Monday as he struck out a career high 11 batters without walking anyone. He's now 4-2 on the season with a 2.82 ERA and a gaudy 0.90 WHIP in 67 innings pitched. He'll look to win game number five in Washington against the Nationals in his next start.