At the weekend, Bayern sealed a sixth successive Bundesliga title and the German side have not wasted time in revealing plans ahead of the next campaign.
According to German source Kicker, Die Roten are close to tying up a one-year extension for both players.
"Bayern are the only team left that will play a bit more cautiously, they are perfectly built for knockout football", added Hargreaves, who played for Bayern from 2000-2007. Midfielder Ever Banega was suspended for the first leg but will return here.
Should Sevilla kill off the supply line between the spaces, they might stay in the match for longer periods, giving their attacking men the chance to grab a foothold in the game.
"They will certainly go on the offensive", said Heynckes.
'We want to play as we always do, as we did in the first leg.
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Should Bayern defeat Sevilla they could face Roma who shocked Barcelona last night, Liverpool and either Real Madrid or Juventus.
KTN Home Channel will broadcast the Champions League quarter-final match between Bayern Munich vs Sevilla with coverage starting from 9:45pm tonight.
"Bayern could knock anyone for six if they're on a roll".
Hargreaves indicates that their success has been built on a squad cohesion, that the starting XI is exemplary across the board. "They did brilliantly in Manchester and we know we have to perform". They have great depth and experience at centre-back in Jerome Boateng and Mats Hummels.
James Rodriguez - so impressive from the Bayern bench in the first leg - grazed the top of the netting with a free-kick after Gabriel Mercado was a touch fortunate to see only yellow for hauling down Robert Lewandowski in the second minute. I really don't think there is a weakness in that side.
That's pretty good going in anyone's book both for longevity and just for sheer amount of success, and those lads very much have Sir Alex Ferguson to thank for having to spend a lot of money on trophy cabinets.