dirk nowitzski
This doesn't exactly answer the question, but Steve Brule of New Jersey managed to win the Stanley Cup with 0 games played in the regular season career at that point (1 playoff game only in 2000 when the Devils won the cup)
Matt Sundin
Walter Jones
Magic Johnson
Wayne Primeau who has played 90 games in the playoffs but has won no Stanley Cups. Miikka Kiprusoff and Jarome Iginla have both played 47 playoff games for the Flames.
A returning player is classified as a player who appeared on a team's season-ending or playoff roster or who has played in 25 or more professional hockey games.
gale sayers, Chicago bears, 1965-1971
no duh derrick rose is the best player in the nba to me he know how to found away to be on the court so no he not out for the rest of the 2012 nba playoff he be back on the court running before you know it yea
Sachin Ramesh Tendulkar
Darren McFadden
Andy Reid and Donovan McNabb
Jason Kidd