SAN DIEGO -- Austin Barnes drove in seven runs with a pair of homers Friday night as the Los Angeles Dodgers completed their most successful June in franchise history by routing the San Diego Padres 10-4 at Petco Park in a game that saw both managers ejected during a benches-clearing face-off at the end of the first inning.
The problems began in the bottom of the first after Barnes had given the Dodgers a 4-0 lead with the first grand slam of his career off Padres starter and loser Clayton Richard (5-8).
Jose Pirela opened the bottom of the first with a double and Dodgers starting pitcher Alex Wood took exception with Pirela relaying signs to San Diego hitters from second base. Wood stepped off the mound and apparently said something to Pirela.
After the end of the first, plate umpire Greg Gibson warned both benches.
Both managers -- Dave Roberts of the Dodgers and Andy Green of the Padres -- then approached Gibson and began exchanging words with one another around the umpire. As the discussion grew more heated, Roberts said something to Green as the Padres manager was being led away by another member of the umpiring crew.
Green responded and Roberts charged Green, bumping into him and the umpire as players from both teams rushed the field, separated the managers and stood face-to-face between home plate and the Padres dugout.
No players were ejected.
On the field, Los Angeles scored seven runs off Richard in 4 1/3 innings while Wood ran his record to 9-0 -- becoming the first Dodger pitcher to start a season 9-0 since Rick Rhoden in 1976.
The win gave the National League West-leading Dodgers a 21-7 record in June. The 21 wins tied a franchise record for June -- with the 1952 and 1954 Brooklyn Dodgers and 1973 Los Angeles edition -- and the .750 winning percentage is a franchise record for the month.
The win also continued the Dodgers' domination of their Southern California division rivals. Los Angeles is 6-1 against the Padres this season and 31-15 against San Diego since the start of the 2015 season.
The game was essentially over after six hitters.
Richard retired the first two hitters he faced before Justin Turner singled. Richard then walked Cody Bellinger and Logan Forsythe before Barnes drove a Richard fastball 387 feet into the left-field stands for the first grand slam of his career.
It was the first of three homers hit by the Dodgers.
Justin Turner hit a 403-foot, two-run homer off Richard in the fourth to make it 6-0. And Barnes drove in three runs with his second homer, a 414-foot drive off reliever Jose Valdez, in the sixth to make it 10-1.
Richard gave up seven runs on nine hits and four walks. The left-handed Wood, meanwhile, allowed one run on two hits and three walks over six innings.
Hector Sanchez hit his third pinch-hit homer of the season for the Padres -- a two-run shot off Sergio Romo in the ninth.
NOTES: Dodgers manager Dave Roberts was raised in San Diego County and played for the Padres as well as being a coach. He sought the Padres managerial job following the 2015 season but wasn't granted an interview before being hired by the Dodgers. ... The Padres activated INF Chase d'Arnaud from paternity leave Friday and optioned OF Franchy Cordero back to Triple-A El Paso. ... The Padres also announced that LHP Dillon Overton will be promoted from El Paso to start Saturday's game against Los Angeles. ... The Dodgers gave SS Corey Seager another day off to rest the hamstring he tweaked June 23.