Worcester centre Alex Grove suffered last gasp international agony as Scotland's 100% record under new coach Andy Robinson came to an end as Argentina extended their winning run at Murrayfield to 19 years with a 9-6 win.
The hosts dominated the first half on Saturday but only led 6-0 at half-time through two Phil Godman penalties.
Martin Rodriguez landed two of his own to level the scores after 58 minutes and the Pumas' inside-centre clinched victory with a 77th-minute drop-goal, which means Scotland have not beaten Argentina at Murrayfield since 1990.
Scotland, for whom Grove played the entire 80 minutes again on his third appearance for his country, went into the game full of confidence after a first win in 27 years against Australia last weekend.
Worcester wing Ben Howard has been named in the England Under 20s team to take on New Zealand in the semi-final of the IRB Junior World Championship in Vannes, France, on Tuesday June 18, kick off 1945 (GMT).
The Warriors Community team have been busy working with people across Worcestershire over the last year and have been given the perfect reward for their efforts after being nominated for a top prize at the All Parliamentary Premiership Rugby Community Awards 2013.
The Worcester Warriors Community department joined forces with Stourport Rugby Club on Tuesday to welcome nearly 90 children from local primary schools to a tag rugby tournament supported by the Aviva Premiership Rugby Schools Programme.
Ben Howard scored two tries as England Under 20s stormed to a record-breaking 109-0 victory over USA to book their place in the IRB Junior World Championship semi-finals alongside South Africa, New Zealand and Wales.
Sign up with the Warriors before this Thursday (June 13) and you will also be entered into a prize draw to win a pair of tickets for this summer's J.P. Morgan Asset Management Premiership Rugby 7s Series at Kingsholm!
Worcester Warriors is delighted to announce its successful long-term partnership with CitySigns is to continue after the family signage and leading display firm was confirmed as the club's Official Signage Partner.
England Under 20s - who included Worcester wing Ben Howard - fell agonisingly short against world champions South Africa in the IRB Junior World Championship, losing 31-24 in La Roche-sur-Yon on Sunday.