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A grand total of 31 Australians have suited up in the major leagues. Here is a look at some notables:
RHP Ryan Rowland-Smith (2007-Present)
Rowland-Smith has not played in the major leagues since 2010 during his time with the Seattle Mariners, and in his four big league seasons he is 12-17 with a 4.57 ERA in 115 games (47 starts).
He's in camp with the Diamondbacks this spring and is part of their travel roster for the series. He will suit up for Team Australia in an exhibition against the Dodgers on Thursday, then turn around and play against Team Australia for the Diamondbacks on Friday in another exhibition.
2B Joe Quinn (1884-1901)
Quinn made his big league debut on April 26, 1884 at the age of 19, becoming the first Australian-born player to suit up in MLB.
He played 17 seasons, hitting .262/.302/.328 with 1,800 hits, and he also served as a player/manager for the St. Louis Browns in 1895 and Cleveland Spiders in 1899.
C/OF Dave Nilsson (1992-1999)
The top Australian-born player in MLB history, Nilsson spent eight seasons with the Milwaukee Brewers, posting a 10.5 rWAR while hitting .284/.356/.461 with 105 home runs and 470 RBI.
His best season in the States was his last, as he hit .309/.400/.554 with 21 home runs and 62 RBI to earn a spot on the NL All-Star team in 1999. He opted to return to Australian after the 1999 season so he could represent the country in the 2000 Olympics, marking the end of his MLB career.
RP Grant Balfour (2001-Present)
Balfour has emerged as one of the better closers in baseball over the past two seasons while pitching for the Oakland Athletics, saving 62 games with a 2.56 ERA and 9.5 K/9 according to FanGraphs. He signed with the Tampa Bay Rays in the offseason on a two-year, $12 million deal.
In 463 career appearances, the right-hander is 28-17 with 72 saves, a 3.27 ERA and 514 strikeouts in 473 innings of work.
RP Graeme Lloyd (1993-2003)
An oft-used left-handed reliever, Lloyd made 568 appearances over his 10-year career, going 30-36 with 17 saves and a 4.04 ERA. He finished second in the NL in games pitched in 2001 with 84 while playing for the Montreal Expos.
SP Damian Moss (2001-2004)
Moss broke into the league with a big rookie season in 2002, going 12-6 with a 3.42 ERA for the Atlanta Braves to finish fifth in NL Rookie of the Year voting.
The left-hander was traded to the Giants that offseason for right-hander Russ Ortiz in what turned out to be a great deal for the Braves. Moss went just 10-13 with a 5.70 ERA over the next two seasons, and while he pitched in the minors until 2010, he would not see the majors again after 2004.
RP Peter Moylan (2006-Present)
Moylan started his career off with a bang in Atlanta, appearing in 80 games in 2007 and posting a 1.80 ERA over 90 innings of work for a 1.9 rWAR. He's dealt with injuries the past three seasons, appearing in just 35 total games, but he is back healthy now and looking to win a spot in the Houston Astros' bullpen on a minor league deal.