Complex sentence: The modern Blackburn End Stand has 8,000 seats, and constructed in the early 1990s, the boardroom in the Nuttall Street Stand was dismantled piece by piece and, when rebuilding was finished, reassembled in the Blackburn End.
Split into simpler sentences: The modern Blackburn End Stand has 8,000 seats and was constructed in the early 1990s. The boardroom in the Nuttall Street Stand was dismantled piece by piece and, when rebuilding was finished, reassembled in the Blackburn End.