Complex sentence: Di Matteo became a regular in the Lazio side and made his debut for Italy during his three seasons with the Rome club and fast becoming a club star.But e was signed by Ruud Gullit for English side Chelsea for a then club record fee of £4.9 million.
Split into simpler sentences: Di Matteo became a regular in the Lazio side and made his debut for Italy during his three seasons with the Rome club and fast becoming a club star. But he was signed by Ruud Gullit for English side Chelsea for a then club record fee of £4.9 million.