Tuesday — Active rosters expand to 40 players.

Oct. 7 — Playoffs begin.

Oct. 28 — World Series begins, city of American League champion.

November — Free agent filing period, first 15 days after World Series ends.

Nov. 9-11 — General managers meetings, Chicago.

Nov. 30-Dec. 4 — Major League Baseball Players Association executive board meeting, Scottsdale, Ariz.

Dec. 1 — Last day for teams to offer salary arbitration to their former players who became free agents.

Dec. 7 — Last day for free agents offered salary arbitration to accept the offers.

Dec. 7-10 — Winter meetings, Indianapolis.

Dec. 12 — Last day for teams to offer 2010 contracts to unsigned players.
2010

Jan 5-15 — Salary arbitration filing.

Jan. 19 — Exchange of salary arbitration figures.

Feb. 1-21 — Salary arbitration hearings.

March 2-11 — Teams may renew contracts of unsigned players.

March 17— Last day to place a player on unconditional release waivers and pay 30 days termination pay instead of 45 days.

March 31 — Last day to request unconditional release waivers on a player without having to pay his full 2008 salary.

April 4 — Opening day, active rosters reduced to 25 players.

July 13 — All-Star game, Anaheim, Calif.

July 25 — Hall of Fame inductions, Cooperstown, N.Y.

July 31 — Last day to trade a player without securing waivers.

Aug. 15 — Last day to sign selections from 2010 amateur draft who have not exhausted college eligibility.

Sept. 1 — Active rosters expand to 40 players.

November — Free agent filing period, first 15 days after World Series ends.

Dec. 4-7 — Winter meetings, Lake Buena Vista, Fla.

Dec. 12 — Last day for teams to offer 2011 contracts to unsigned players.