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6/14/2014 10:19 P.M. ET

Back shouldn't derail De La Rosa's next start

SAN FRANCISCO -- Rockies left-handed pitcher Jorge De La Rosa said he expects to make his next start, Wednesday against the Dodgers, after having to leave Friday night's start against the Giants after three innings because of lower back tightness.

De La Rosa (6-5, 4.12 ERA) said he felt discomfort when warming up before the game, an eventual 7-4 Rockies victory. It worsened during the third inning, when he gave up two runs.

"It felt like something was definitely really bad, but I came in [to the training room] and had some treatment, then I was better," De La Rosa said.

This is the second time De La Rosa has had back issues. It happened when he did some running after a May 7 start at Texas, and he had his next start pushed back several days. For the next several starts, he replaced running with work on the elliptical machine, but went back to running about two weeks ago.

"I won't be running until I feel better," he said.

The start in Texas also was when he suffered a bruised middle finger, which is an issue every time he pitches. But, like the bruised thumb he pitched with most of last season while going 16-6 with a 3.49 ERA, the problem is not debilitating. He also believes that with sensible treatment and modified work between starts, the back might actually improve.

Rockies hoping Tulo not out long with sore toe

SAN FRANCISCO -- The pain from a toe injury that Rockies shortstop Troy Tulowitzki suffered Friday night calmed down enough that he pinch-hit in the top of the ninth inning of Saturday afternoon's 5-4 victory over the Giants at AT&T Park.

Tulowitzki left Friday night's 7-5 victory after his single, which started a game-winning rally in the ninth, with an injury to the middle toe on his right foot. X-rays Friday were negative and manager Walt Weiss said an MRI on Saturday "came back clean."

Tulowitzki flied out against Giants closer Sergio Romo on Saturday. But later in the frame, Brandon Barnes delivered a two-out, two-run, inside-the-park homer to give the Rockies the victory.

"I told them when I walked in that I'd be doing everything I could to be available," Tulowitzki said. "So in the fourth or fifth [inning], I started stretching and getting in the cage and letting them know how I was feeling, that I felt good enough to hit.

"Running was questionable. I knew I couldn't play defense. But I think I went out there and battled and the guys did a good job picking me up and picking everybody up. It was a great team win."

Tulowitzki entered the day leading the National League in batting and several other categories. He knows how much he is needed.

The Rockies are already without regulars Carlos Gonzalez (left index finger), Michael Cuddyer (left shoulder) and Nolan Arenado (left middle finger) and are in a key stretch of games leading to the All-Star break. They need Tulowitzki.

He said he would try to see if he could play defense Sunday.

"I'm going to get here real early and try to do everything I can to get myself in the lineup," he said. "If I can, I'll go. If I can't, I won't."

Rockies come to terms with Draft pick Wall

SAN FRANCISCO -- The Rockies and Forrest Wall, a second baseman from Orangeburg (Fla.) Christian High School whom they selected 35th overall in the First-Year Player Draft, have reached an agreement on a $2 million bonus, a source told MLB.com.

The club has not confirmed the agreement. But Wall, 18, is expected to officially sign the agreement Wednesday in Denver. The bonus agreement is for above the slotted figure for the 35th overall choice, in Competitive Balance Round A, which is $1.6145 million.

During his senior season, Wall batted .500 (28-for-56) with 16 RBIs, 31 runs and a .610 on-base percentage. In four high school seasons, the left-handed-hitting infielder hit .461 (106-for-230) with 25 doubles, 8 triples, 9 home runs, 70 RBIs and 98 runs in 79 games and went 70-for-71 on stolen-base attempts.

By signing, Wall will forego his commitment to the University of North Carolina.

Thomas Harding is a reporter for MLB.com. Follow him on Twitter @harding_at_mlb. This story was not subject to the approval of Major League Baseball or its clubs.