When the Vikings and Steelers play on Sunday in London, it will mark the 17th all-time meeting between the two tradition-rich teams.  The series is split, with each team notching eight wins and eight losses in the first 16 matchups in the series.  Pittsburgh has won the last three games in the series, garnering wins in 2001, 2005, and 2009.  The last Minnesota win over the Steelers came in 1995 in Pittsburgh when the Purple beat the Steelers 44-24.  The only other time the two clubs have met in a neutral setting was Super Bowl Nine in New Orleans in 1975.