KANSAS CITY — Vin Mazzaro pitched six stellar innings, and the Kansas City Royals beat punchless Oakland 2-0 Sunday, handing the Athletics their third shutout in four games.
Eric Hosmer homered as the Royals sent the A's to their 10th loss in 11 games.
Mazzaro (2-0), who pitched for the A's in 2009-10 before being traded to the Royals, allowed four singles, walked three and struck out three.
Mazzaro escaped a bases-loaded jam in the first after giving up singles to Collin Cowgill and Josh Reddick and walking Kila Ka'aihue. Brandon Inge grounded out to end the inning.
Relievers Kelvin Herrera, Greg Holland and Jonathan Broxton each gave up one hit in one inning, completing the Royals' fifth shutout of the year. Broxton earned his 13th save in 15 opportunities.
Royals left fielder Alex Gordon made a key play in the fifth. With one out and runners on second and third, Gordon caught Reddick's fly in foul territory and threw out Adam Rosales at home by three steps.
Hosmer homered to center field leading off the second against A's starter Tommy Milone (6-5). It was Hosmer's first home run of the season off a left-handed pitcher.
The Royals got another run in the fifth when Johnny Giavotella's single scored Jarrod Dyson, who started the inning with a single and stole second.
Milone gave up eight hits in seven innings and matched his career high with six strikeouts. He tossed eight scoreless innings and allowed three hits to beat the Royals 1-0 on April 9 in his A's debut.
Oakland's Cliff Pennington went 0 for 3 with a sacrifice bunt and is hitless in his past 29 at-bats, the longest drought of his career.