THE SIDELINES : 76ers Extend Lynam’s Contract

PHILADELPHIA — The Philadelphia 76ers extended Coach Jim Lynam’s contract two years and signed top draft pick Brian Oliver to a guaranteed four-year contract at a reported $1.6 million.

Sixers’ owner Harold Katz said today that it took 10 minutes to agree with Lynam on a contract that extends the coach’s tenure through 1993.

Katz then described the signing of Oliver, a 6-4 guard from Georgia Tech, as “the most difficult of a second-round draft choice I’ve ever had.”

Lynam, 49, was in the last year of a three-year contract that paid him a reported $700,000. A source indicated that the coach probably will get $700,000 for the additional two years.