Although Artis Gilmore is by far the tallest problem confronting the Bullets against the Bulls in Chicago tonight, he isn't their only concern.

The game completes a two-night home-and-home series.

When the Bulls play well, as they did in beating Washington in December, Gilmore receives plenty of help from two of the lesser known quality players in the league, forward Kickey Johnson guard Wilbur Holland.

Johnson, in his fourth NBA season, was a middle-round pick by Portland in the 1974 draft after making the NAIAAll-American team at Aurora College. He had never played high school basketball and because of his lack of strength - at 6.9 and 190 pounds - he was not an attractive pro prospect.

Now he is averaging almost 20 points a game although, as big forward, he is guarded by much stronger players. He offsets the size problem with unusual quickness and an ability to jump high enough to block shots by Kareem Abdul-Jabbar, Elvin Hayes and Julius Erving.

"I've never seen a player improve as much as Mickey has in such a short period of time," said coach Ed Badger. "He's willing to work and with greater consistency and improved defense, he can become an all-star!"

Holland was signed as a free agent October 1976 after being cut by Atlanta. He immediately won a starting spot and would up averaging 15 points after playing in only 33 games for Atlanta in 1975-76.