Complex sentence: Unfortunately, the U. de G. never won a season while Tecos do, and most badly, U. de G. lost the franchise due to economical issues that lead to sell it to the FEMEXFUT in 1994.
Split into simpler sentences: Unfortunately, the U. de G. never won a regular season while Tecos did. Tragically, the U. de G. lost their franchise due to economic issues that lead to the team being sold to FEMEXFUT in 1994.