Tianlang, who beat the previous record held by Italy's Matteo Manassero, who was nearly 17 when he set the previous mark in 2010, bogeyed his first but responded swiftly with a birdie at the third.

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Guan will be by far the youngest player ever at the Masters Italy's Matteo Manassero was nearly 17 when he played in 2010 so if he were to win, things might get crazy indeed, not least the scramble to find a champion's green jacket in his size.

WSJ: A Master Class

That's slightly better than Di Matteo's 52% in his 23 games in charge and his predecessor Andre Villas-Boas's 48%.

WSJ: Rafa Benitez Era at English Soccer's Chelsea a Mixed Bag