In the span of three short years, Roy Halladay has gone from the best pitcher in baseball to out of baseball.

According to a report from's Jon Heyman, Halladay will announce his retirement today. Halladay, who turns 37 in May, spent the last four seasons of his 16-year career with the Phillies.

Halladay won 203 games and two Cy Young Awards in a career that could very well earn him a trip to Cooperstown.

In 2010, his first season with the Phillies, Halladay threw a perfect game, a postseason no-hitter and collected the National League Cy Young Award. He was the runner-up for the award a year later; Halladay went 40-16 with a 2.48 ERA in 65 starts in his first two seasons with the Phillies.

But shoulder issues plagued Halladay in each of the last two seasons.

He underwent surgery in May. He returned in late August and made six starts, with mixed results.

Halladay had a 5.15 ERA in 38 starts in 2012 and 2013.

Selected with the 17th pick of the 1995 draft by the Blue Jays, Halladay had a brilliant run in Toronto. From 1998-2009, the righthander was 148-76 with a 3.43 ERA.

In the nine-year span from 2002-2010, Halladay was arguably the best pitcher in baseball: 151-69 with a 3.04 ERA, a 1.12 WHIP,  55 complete games and 17 shutouts in 272 games.

But the same right arm that led him to all of that success betrayed him in the last two years of his career.

The Toronto Blue Jays will hold a press conference at 12:30 today at MLB's Winter Meetings in Orlando, where Halladay is expected to sign a one-day contract with the team and retire as a Blue Jay.

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