Shaun Marsh is one of the 15 players who have been named in the Australia squad to play the ICC Cricket World Cup 2019 in England and Wales. Shaun Marsh, who made his one-day international debut on 24-Jun-08, had played 71 ODI matches until the 2019 World Cup. In the 70 innings he batted in, he had scored a total of 2747 runs, having faced 3371 balls, at an average of 41.62 and a strike rate of 81.49. He was unbeaten in 4 of those innings. His highest score in an innings was 151. He had 7 centuries and 15 half-centuries to his name.

Shaun Marsh is a left-handed opening batsman for Australia. He has been a regular in the Australian side across the formats. The batsman has represented Australia at both the 1999–2000 and 2001–02 ICC Under-19 World Cups. In the 1999–2000 tournament, held in Sri Lanka, he was the second highest run scorer for Australia behind Shane Watson, and other notable teammates included played alongside Michael Clarke and Mitchell Johnson. Marsh has excelled in all formats of cricket and earned his place as one of the most explosive batsmen. He made his debut in International cricket against West Indies in a T20 match in 2008.
Indian Premier League career
Marsh played for Kings XI Punjab in the 2008 Indian Premier League. Marsh scored the most runs in the league stage of tournament for which he earned Orange cap, including a century in the final league stage match against the Rajasthan Royals. Marsh has been playing for Kings XI Punjab since the start of the Indian Premier League, becoming one of the most vital players for the team.
ODI Career
He made his One Day International debut in 2008 and won the Man of the Match award for scoring 81 runs from 97 balls. Marsh was able to claim one of the opening batsmen positions for the 2008–09 season after the retirement of Adam Gilchrist and Matthew Hayden. His first century came in the 5th ODI against India at Hyderabad in November 2009. On 21 January 2011, Marsh scored his second ODI century while playing against England and stitched a record ninth-wicket partnership with Doug Bollinger that helped Australia win the match by 46 runs and earning him the Player of the Match title. In April 2019, he was named in Australia's squad for the 2019 Cricket World Cup.

T20 and T20I career
Due to his excellent form in 2007–08 season, Marsh was picked for the Australian squad and made his debut in June 2008 in a Twenty20 game against the West Indies. Marsh has excelled in the Twenty20 format of cricket, and during the 2012–13 Big Bash League, he scored five half-centuries in nine innings, ending the tournament as the leading run scorer, and helping the Scorchers reach the final
Test Career
Marsh was included in the Test cricket squad for Australia's tour of India in 2008, but was not selected for a match. In July 2011, Marsh was selected for the Australian Test Squad for the tour to Sri Lanka and was presented with the green cap by his father. Marsh made his maiden Test century (141) in his debut match and became the 19th Australian to score a century on Test debut. He played all four Tests in Australia's 2011–12 home series against India, but was dropped after poor performance. Marsh did not return to the Test team until 2014, and from 2014 until 2016 was a fringe player who has filled in for an injured top-order batsman on several occasions. He toured with the Australian team throughout the 2015 Ashes series, playing well in tour matches but failing in the sole Test for which he was selected. After three years on the fringe, Marsh was recalled as a first choice opening batsman in the final Test of Australia's tour of Sri Lanka and he scored a century (130) in his return innings.