Source: David Schoenfield, ESPN 
The Sporting News, April 30, 2001:
A year ago, the Twins tried to get DH David Ortiz to shorten his stroke and punch balls up the middle and to the opposite field. The results were decent: a .282 batting average, 10 homers and 63 RBIs in 415 at-bats. This season, the club would like to see Ortiz take advantage of the power potential in his 6-4, 230-pound frame. He has made several adjustments, including lowering his hand position in his stance and shortening his leg kick. After 16 games, he was batting .365 and leading the team in homers with four. If Ortiz stays focused, he has the opportunity to have a breakout year offensively.
Ortiz had battled a long list of injuries — a broken hamate bone, a broken wrist, a knee injury — and those injuries had certainly played a role in his production.
He got a chance in Boston for 2003, and after working on shortening his swing, has improved against left-handed pitchers, learned from Manny Ramirez, learned how to attack the Green Monster with opposite-field doubles.
He’d become David Ortiz.