Complex sentence: In a do-or-die Game 3, the Blue Jays sent Marco Estrada to the hill, opposing him was Martín Pérez making his first career start and appearance against the Blue Jays.
Split into simpler sentences: In a do-or-die Game 3, the Blue Jays sent Marco Estrada to the hill. Opposing him was Martín Pérez, making his first career start and appearance against the Blue Jays.