SAN DIEGO -- Nolan Arenado's first-inning dugout tirade will be the enduring image from a 4-0 loss to the Padres on Friday night, but it's the bad baseball that preceded and followed it -- not the emotion -- that the Rockies know they must address.
Arenado said he was frustrated, and his outburst -- which came after Matt Kemp's three-run homer off a first-pitch fastball from Chris Rusin gave the Padres a 3-0 lead through one inning -- was not directed at anyone.
Although internet lip-readers made out "fastball" among the words that spewed from Arenado's lips, he insisted he wasn't yelling at Rusin or catcher Nick Hundley, who stepped in front of Arenado and became his audience.
Arenado offered no specifics, noting, "I can't really repeat a lot of that."
Despite the exhortation, the Rockies lost for the 12th time in the last 16 games and managed just two hits. Padres lefty Drew Pomeranz, once a highly regarded young Rockies pitcher, held his former club to the two hits and fanned eight in seven innings. Melvin Upton Jr. also stole home in the fourth.
• Arenado calls on team to step up
"Just frustrated, just losing gets kind of old," Arenado said. "I'm frustrated with myself. I wasn't yelling at Hundley. I was just yelling in general. Frustration got the best of me. If I was going to do it, I probably should've done it in the tunnel.
"I got frustrated. I let it out. The boys know I love them. … Matt Kemp hit the homer, but I wasn't yelling at Rus -- Rus competed his butt off today. I'm very proud of him."

Hundley said, "My view of it is when your best player cares as much as Nolan does, that's a very positive thing. Whether it comes across in the way he plays, in the locker room, being passionate about the work, about his swing, being passionate about the Rockies winning, those are all things that manifest themselves.
"You see a short clip, it's easy to think the wrong thing."
Manager Walt Weiss, who arrived at the dugout scene along with third-base coach Stu Cole, had no problem with his best player letting off steam, even if it was in front of fans with a good vantage point or the television cameras.
"I don't mind if it's in front of anybody," Weiss said. "It wasn't directed at anybody. Let him have his say, then there was a point where I said, 'OK, let's go. Let's turn the page and let's move on.' "
Just before the homer, Rusin blew a chance at a double play with a wild throw to second on Wil Myers' bouncer. He said the post-homer commotion in the dugout didn't bother him. Rusin would give up just one more run in seven innings.
"I feed off it," Rusin said. "It fired me up. You don't want to look at those things as negative things, because things can turn for the worse. I used it to my advantage and went out there and competed."