Spain's 3-3 draw with Portugal in their opening game was one of the most entertaining group matches in recent World Cup memory.
Next up for Fernando Hierro's side is a clash with current Group B leaders Iran on Wednesday evening in Kazan.
The Iranians scored late on to win their first game 1-0 against Morocco and another victory for Carlos Queiroz's men would seem them through to the last 16 with a game to spare.
Latest odds
Despite their win against Morocco, Iran remain rank outsiders at 18/1 (19.00) with dabblebet to pick up another another three points.
Spain meanwhile are offered at 2/11 (1.22) while the draw, which would leave La Roja in an extremely precarious position, is priced at 6/1 (7.00).
Team news
Dani Carvajal missed the draw with Portugal but the Real Madrid right-back may return to the starting eleven, although Nacho could keep his place following his stunning strike against Portugal.
Preview
Other subsequent results at the World Cup have put Spain's draw with Portugal into perspective and the general feeling is that La Roja have played some of the best football seen so far at the tournament.
Expect them to utterly dominate possession against Iran, and the question will be how can Spain find a way through against an opponent with eleven men behind the ball.
Spain rarely run riot but they do usually find a way through, while at the other end they should rediscover the defensive solidity which was missing against Portugal.
Tips and predictions
A Spain win and under 2.5 goals in the game is priced at 7/4 (2.75) although perhaps a wiser investment is backing 2-3 goals to be scored in the game at evens (2.00).
This selection gives us plenty of options and pays out with a 1-0, 2-0, 2-1 or 3-0 win for the 2010 world champions, which look like being potentially the most likely scorelines.
2-3 goals scored in the game at evens (2.00) for a 2.5pt stake with dabblebet
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