Don Reese, ex-NFL defensive lineman who did time in prison (1977-78) for selling drugs in Miami, has hit pro football in a Sports Illustrated cover story (with SI's John Underwood), alleging that "a cocaine cloud covers the entire league." The ex-Dolphin/Saint/Charger pours out alleged details, names names.

In New Orleans, some Saints "got a regular little circle going . . . 'basing' (inhaling heated cocaine) every chance we got." San Diego had "a big drug problem." In general, "Cocaine . . . is pushed on players, often from the edge of the practice field. Sometimes it's pushed by players. Prominent players. Just as it controlled me, it now controls and corrupts the game."

Gene Klein, Chargers owner, hollers exaggeration--"I understand Sports Illustrated picked up his drug rehabilitation bills and paid him $10,000." (SI: "We may pick up the tab for the detoxification program he has undergone, or maybe part of it.")

Derland Moore, Saint who once brawled with Reese, says, "I may be naive, but I didn't perceive" a major drug problem. And NFLPA's Ed Garvey finds it "very strange that this issue has come up during bargaining. The same thing happened in 1974 . . ."

Seattle SuperSonics' directors have beaten NBA to vetoing owner Sam Schulman's plan to merge club with a distributor of video poker and blackjack machines--but Sonics seem about to take a flyer on David Thompson. Five turbulent years since Denver made the N.C. State legend pro sports' highest-paid athlete up to then, Nuggets say if details pan out, D.T. could be a Sonic within a week. A trade, offers Nugget Coach Doug Moe, "would be better for David and for us. I'm not cutting up anybody, but there's been so many things happen that maybe David needs a fresh start."

Signed: No. 1 NFL draft choice, Kenneth Sims, New England's hope for defensive renewal. Pay secret. Sims said, "knowing I'm getting what I'm worth, I don't have to worry about it for another four years". . . Colorado's new coach: Michigan defensive coordinator Bill McCartney . . . Oklahoma's president, Bill Banowsky, testifying in suit to break NCAA grip on football TV, parries fear that decontrol would benefit only big schools: "It is naive to assume the big fish have to eat the little fish." And--gulp--"a rising tide lifts all ships". . .Barcelona's 132,000-seat stadium is sold out for World Cup soccer opener Sunday, Argentina-Belgium . . . PBS (WETA-TV-26) will do one-hour edited, same-day versions of 28 of 52 Cup matches, daily, 5:30 p.m., Sundays at 7 . . . ABC reportedly ladles $3 million to show Holmes-Cooney--on tape; Friday, June 25 . . . Airborne anew, Harold Bell's "Inside Sports": second and fourth Tuesday each month, 1 p.m., WPFW-FM-89.3--station with new Sunday jazz show host: Spencer Haywood.

Baseball draftee: Mike Tryon, Catholic U. catcher, by Twins, eighth round. Reports to Wisconsin Rapids next week . . . Naval Academy event, Dewey Field, free: 1982 Interservice Track and Field Championships, 6 p.m. today and Friday.

College basketball: At Eastern 10 meetings in Newport, R.I., coaches vote for 40-second shot clock and three-point field goal from 19 feet; athletic directors decide today.

Satchel Paige services: Saturday, Kansas City . . . Postal Service unveils a Jackie Robinson stamp Tuesday.