Juve lost 1-0 in Germany and Del Piero said: "We came up against a side that is much further along in its preparations as they have already played in the Intertoto Cup.
"It's a shame they stole a goal at the end as it's never nice to concede late.
"But we should be satisfied with the performance, especially in the opening period. Do people expect too much of us? This is Juve, the expectations drive us on."