Cough, cough, splutter, splutter... as Buenos Aires is enveloped in a soup of acrid smoke from farmers burning land (I can see less than 100 metres across the roofs of the city; see it here
River Plate were on fire last night (sorry couldn't resist) beating whipping boys San Martin de PerÃÂº 5-0.
The smoke was so bad you could barely see one side of the pitch from the other but River cleverly used it to their advantage, sweeping the ball up the pitch to Uruguayan SebastiÃÂ¡n Abreu who scored three.
River, along with Estudiantes, San Lorenzo and LanÃÂºs, are now through to the last 16 with Arsenal and Boca Juniors the only Argentine teams still to qualify.
The latter are only likely to do so through some complicated mathematical equation - and a good helping of luck - which to be fair, they usually have.