Sri Lanka Dismissed for 55
Dec 3 Chasing the West Indies 248/5, Sri Lanka is sensationally dismissed for just 55 in cricket's Champions Trophy in Sharjah; Windies pace bowler Courtney Walsh takes 5 for 1 in 4.3 overs
Lendl's Back-to-Back ATP
Dec 10 Ivan Lendl repeats previous year's result with a 6–4, 6–4, 6–4 win over Boris Becker to claim back-to-back season-ending ATP Masters Grand Prix tennis titles at Madison Square Garden, NYC
Boon's Fourth Century
Dec 12 Australian cricketer David Boon's fourth Test century, 103 v England at Adelaide
- Dec 12 James "Bone Crusher" Smith TKO's WBA champ Tim Witherspoon in Madison Square Garden
Gretzky's 41st Hat Trick
Dec 17 Edmonton's Wayne Gretzky scores 4 goals, including a natural hat trick in the 1st period and also records an assist as the Oilers win 5-3 over the visiting Quebec Nordiques; his 41st NHL career hat trick
Jack Morris - Tigers Dispute
Dec 19 Jack Morris agrees to salary arbitration with former team Tigers & accuses owners of collusion against free agency
- Dec 19 Michael Sergio, who parachuted into Shea Stadium during game 6 of the World Series, sentenced to 100 hrs of community service & fined $500
- Dec 22 India score 7-676 v Sri Lanka at Kanpur in Cricket
- Dec 26 Hartford center Doug Jarvis sets NHL record of 916 consecutive games as the Whalers tie 1-1 after OT against his old club Montreal Canadiens
Messier Suspended
Dec 26 Mark Messier is suspended for 10 games for instigating a fight with Jamie Macoun and breaking his cheekbone