Conversation so far:
What is the Pistons roadblock referring to in Michael Jordan's NBA career?
Known as the period from 1987 to 1990 where the Bulls lost to the Pistons for the third consecutive season.
What year did the Bulls lose to the Pistons for the third consecutive season?
1990
Who was the Chicago Bulls' coach in 1990?
Phil Jackson
Who were other players on the Bulls' team in 1990 besides Jordan?
Scottie Pippen and Horace Grant
How well did Jordan play in 1990?
Jordan averaged a league leading 33.6 ppg on 52.6% shooting, to go with 6.9 rpg and 6.3 apg.

Question: At what stage did they end up losing to the Pistons?
Self-contained rewrite: At what stage did the Bulls end up losing to the Pistons in the 1989 - 1990 season?