Petco Park is an open-air ballpark in downtown San Diego, California, USA. It opened in 2004, replacing Qualcomm Stadium as the home park of Major League Baseball's San Diego Padres. Before then, the Padres shared Qualcomm Stadium with the National Football League's San Diego Chargers. Petco Park is named after the pet supplies retailer Petco, which is based in San Diego and paid for the naming rights.

The ballpark is located between 7th and 10th avenues, south of J Street. The southern side of the stadium is bounded by San Diego Trolley light rail tracks along the north side of Harbor Drive (which serve the adjacent San Diego Convention Center). The portion of K Street between 7th and 10th is now closed to automobiles and serves as a pedestrian promenade along the back of the left and center field outfield seating (and also provides access to the "Park at the Park" behind center field). Two of the stadium's outfield entrance areas are located at K Street's intersections with 7th and 10th Avenues. The main entrance, behind home plate, is at the south end of Park Boulevard (at Imperial) and faces the San Diego Trolley 12th & Imperial Transit Center.

Mariano Rivera (born November 29, 1969) is a Panamanian right-handed baseball pitcher who has played 18 seasons in Major League Baseball (MLB) for the New York Yankees. Nicknamed "Mo", Rivera has served as a relief pitcher for most of his career, and since 1997, he has been the Yankees' closer. A 12-time All-Star and five-time World Series champion, he is MLB's all-time leader in saves (608) and games finished (892). His accolades include five American League (AL) Rolaids Relief Man Awards, the 1999 World Series Most Valuable Player (MVP) Award, and the 2003 AL Championship Series MVP Award.

Rivera was signed by the Yankees organization in 1990 as an amateur free agent in Panama, and he debuted in the major leagues in 1995. Initially a starting pitcher, he struggled in the role and was consequently converted to a relief pitcher. After a breakthrough season in 1996 as a setup man, he became the Yankees' closer in 1997. In the following years, he established himself as one of baseball's top relievers, leading the major leagues in saves in 1999, 2001, and 2004. Rivera's presence in the late innings of games to record the final outs has contributed to the Yankees' success in the late-1990s and 2000s, particularly in the postseason where he has set numerous records, including lowest earned run average (ERA) (0.70) and most saves (42). His pitching repertoire consists primarily of one pitch, a sharp-breaking, mid-90s mile per hour (mph) cut fastball that has been called an all-time great pitch.

Trevor William Hoffman (born October 13, 1967) is an American former baseball relief pitcher who played 18 years in Major League Baseball (MLB) from 1993 to 2010. A long-time closer, Hoffman pitched for the Florida Marlins, San Diego Padres, and the Milwaukee Brewers, including more than 15 years for the Padres. He was the major leagues' first player to reach the 500- and 600-save milestones, and was the all-time saves leader from 2006 until 2011.

Hoffman played shortstop collegiately at the University of Arizona and was drafted in the 11th round by the Cincinnati Reds. After not having much success batting, Hoffman was converted to a pitcher, throwing up to 95 miles per hour (mph). The Marlins acquired him in the 1992 expansion draft, and he pitched in Florida until he was traded to the Padres mid-season in 1993 in a deal that sent star Gary Sheffield to the Marlins. Hoffman recorded 20 saves in 1994 in his first season as Padres closer, and in the following years, he became the face of the franchise after Tony Gwynn retired. He collected at least 30 saves each year for the next 14 years, except for 2003 when he missed most of the year recovering from shoulder surgery. After San Diego did not re-sign him, Hoffman pitched two years with the Brewers before retiring in 2010.