Bayern Munich striker Sandro Wagner says he is determined to play his part as the record Bundesliga champions look to overturn their 2-1 deficit against Real Madrid in the UEFA Champions League semi-finals on Tuesday.

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Jupp Heynckes has already made it clear that Robert Lewandowski will lead the line at the Santiago Bernabeu – hardly surprising, given that he has scored 39 goals in all competitions this season – but Wagner could be Bayern's secret weapon from the bench, especially after his excellent performance against Eintracht Frankfurt at the weekend.

"In the first leg, we had three players injured, so the coach had to make positional changes," said Wagner, an unused substitute in the 2-1 defeat at the Allianz Arena. "But whether it's from the bench or from the start, I definitely want to play in Madrid."

Watch: Wagner on why he's "the best German striker" around

Heynckes was keen to single Wagner out for praise after his star turn in Saturday's 4-1 home win over Frankfurt, which could prove a useful warm-up for the DFB Cup final against the Eagles on 19 May.

"All of the players were totally committed," the 72-year-old declared. "But for me, Sandro Wagner had an outstanding game. He battled hard, covered an impressive amount of ground and scored a wonderful goal."

The former Hoffenheim man's strike against Frankfurt moved him onto eight goals in 12 league games for the Bavarian giants – a pretty successful homecoming for a player who came through the Bayern youth ranks, but left for MSV Duisburg back in 2008. The 30-year-old has also identified a weakness that he and his teammates can exploit at the Bernabeu on Tuesday.

"Real were all at sea defending our crosses, so I think we know what we have to do," he explained. "We all want revenge and we've vowed to give it absolutely everything in Madrid."

Although Wagner's inclusion in the starting line-up would come as a surprise, the 6'4" centre-forward would certainly add another dimension to Bayern's game as they look for the bare minimum 2-0 win needed to send them through to the final in Kiev.

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