Complex sentence: He never appeared in any La Liga games with the side, and moved to CD Numancia in 2003--04; the Soria outfit promoted from the second division, but he did not appear one single minute during the (half) campaign.
Split into simpler sentences: He never appeared in any La Liga games with the side, and moved to CD Numancia in 2003--04. The Soria outfit promoted from the second division, but he did not appear one single minute during the (half) campaign.