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7/8/2014 8:56 P.M. ET

Cubs have confidence in Coghlan as leadoff man

CINCINNATI -- The Cubs have been looking for a leadoff man since Emilio Bonifacio was injured, and Chris Coghlan seems to be filling that role well.

Coghlan posted his eighth career four-hit game Monday, and he led off again Tuesday for the Cubs in the first game of a day-night doubleheader against the Reds.

So far, Coghlan is 11-for-49 (.224) batting first this season, but Cubs manager Rick Renteria has seen encouraging signs.

"As a whole, his at-bats have been really good," Renteria said. "He's not going to get four hits every night, but his at-bats have been good. As a byproduct, he's getting pitches he can handle and he's seeing the ball well. He's used that slot and kind of taken off a little bit."

Bonifacio has been sidelined since June 13 with a right oblique strain, and he has been rehabbing in Mesa, Ariz. There was no timetable for his return.

Coghlan goes yard in both games of twin bill

CINCINNATI -- Chris Coghlan achieved a feat in Cincinnati no Cubs player has done since the late Ron Santo.

Coghlan hit a solo homer in the sixth inning of the first game of Tuesday's day-night doubleheader against the Reds, and belted a two-run shot in the second inning of the second game.

He's the first Cubs player to homer in both ends of a doubleheader since Alfonso Soriano did so on Sept. 15, 2007, in St. Louis, and the first Cubs player to do so in Cincinnati since Santo did on June 20, 1965. Santo hit a pair of three-run homers that day.

The Cubs outfielder, who was making his 28th and 29th starts in the two games, matched a career-high with four hits on Monday.

Impressive first outing earns Beeler another shot

CINCINNATI -- In his Major League debut on June 28, Dallas Beeler held the Nationals to one unearned run on four hits over six innings, impressing Cubs manager Rick Renteria.

Beeler will get another start Wednesday against the Reds, filling one of the vacancies created by Saturday's trade of Jeff Samardzija and Jason Hammel to the Athletics. Kyle Hendricks, a highly touted right-hander whom the Cubs acquired from the Rangers in July 2012, will make his Major League debut Thursday.

Beeler struck out six in his outing against the Nats.

"His ball has a lot of sink and depth," Renteria said Tuesday of the right-hander. "He works it to both sides. I thought he kept the ball down. I thought he was extremely composed in his outing with us, as was evidenced by the results. He kept us in the ballgame. ... He just showed a really good mound presence and good stuff."

Renteria hasn't seen Hendricks pitch since Spring Training, when the right-hander gave up three runs on five hits over eight innings in three outings. He struck out eight and did not walk a batter.

"In the spring, what I remember is he's a command guy and he's got to execute pitches," Renteria said of Hendricks, who was 10-5 with a 3.59 ERA in 17 starts at Triple-A Iowa. "He's got a breaking ball, fastball with some depth, a four-seam fastball. He's kind of a taller gentleman who is known for commanding the zone, which I hope he will do here."

Extra bases

• Cubs second baseman Darwin Barney will go on paternity leave Wednesday, and return to Chicago to be with his wife, Lindsay, for the birth of their third child. The Cubs will call up infielder Arismendy Alcantara from Triple-A Iowa for the remaining two games against the Reds Wednesday and Thursday. Alcantara, 22, was batting .308 with 10 home runs, 24 doubles, 11 triples and 21 stolen bases in 88 games at Iowa.

• Lefty Chris Rusin, who threw a no-hitter this year for Triple-A Iowa, was considered for the Cubs' rotation, but he will stay in the bullpen for now. Rusin pitched 3 2/3 innings in relief of starter Carlos Villanueva on Saturday against the Nationals. Jeff Samardzija was slated to start before he was traded to the Athletics.

"It wasn't easy what we asked him to do, quite frankly," manager Rick Renteria said of Rusin. "He had thrown previously, and we had him come in and pick up in the middle of an inning. He [grinded] it out and ate up some innings. He just needs to continue to pitch effectively."

Carrie Muskat is a reporter for MLB.com. She writes a blog, Muskat Ramblings, and you can follow her on Twitter @CarrieMuskat. This story was not subject to the approval of Major League Baseball or its clubs.