Kansas City Royals outfielder

Alex Gordon

had surgery on his right wrist, and the four-time Gold Glove winner should be ready for the season opener against the White Sox on April 6.

The surgery was performed at the University of Kansas Hospital on Tuesday. It was not clear when Gordon will be able to start in spring training.

Royals trainer Nick Kenney said in a statement that Gordon reached out to the team about some wrist discomfort last week. Gordon traveled to Kansas City and underwent testing, and the surgery was scheduled immediately so that he would be ready for the season.

Gordon dealt with pain in the same wrist midway through last season but did not miss significant playing time. He aggravated the injury during his winter training sessions.

The San Diego Padres traded outfielder Seth Smith to the Seattle Mariners in exchange for hard-throwing reliever Brandon Maurer.

Smith was left without a spot in the Padres outfield after San Diego's makeover, which included the acquisitions of Matt Kemp, Justin Upton, and Wil Myers. But Smith should have a significant role in Seattle. The lefthanded hitter batted .266 with 12 homers and 48 RBIs last season.

Maurer, 24, was originally a starter with Seattle last season but thrived after moving to the bullpen.

A figure in the investigation into use of banned performance-enhancing substances by Major League Baseball players was sentenced to less than 21/2 years in prison after pleading guilty to conspiring to distribute testosterone.

Jorge Velazquez told U.S. District Judge Cecilia Altonaga in Miami that he was sorry for what happened.

Velazquez admitted being a drug supplier for Anthony Bosch, who ran the now-closed Biogenesis of America clinic in Coral Gables. Bosch and four others also pleaded guilty in the case, which resulted in suspensions of 14 professional baseball players, including New York Yankees star Alex Rodriguez.

SOCCER Promising young midfielder Gedion Zelalem obtained his U.S. citizenship and the process is underway for him to join the U.S. men's national team.

Zelalem made his Champions League debut with Arsenal earlier this month. The 17-year-old, who had played as a youth for Germany, was able to become a citizen after his father obtained U.S. citizenship.

Zelalem was born in Germany to Ethiopian parents. He lived in Maryland for six years before going to Arsenal's youth academy when he was 16.

Everton goalkeeper Tim Howard will be sidelined for up to six weeks with a calf injury. The 35-year-old United States international initially missed Sunday's loss at Newcastle with the injury suffered against Stoke on Friday.

Joel Robles will play in Howard's absence, and Everton manager Roberto Martinez said he would assess whether Everton needed to sign another goalkeeper.

Howard's injury is a further blow for Everton, which has lost three consecutive matches.

- Wire reports