An ecstatic Raheem Sterling of Manchester City runs towards the crowd after scoring a late winner against Bournemouth on Saturday; (right) Raheem Sterling gestures after he receives his second yellow card from referee Mike Dean. Pics/Getty Images, AFP

Manchester City manager Pep Guardiola was left scratching his head after Raheem Sterling was sent off moments after giving his side a last-gasp 2-1 victory at Bournemouth on Saturday.