By Sean Walsh Former Real Madrid boss Bernd Schuster has urged Xabi Alonso to be cautious with making his next step in management amid interest from Liverpool and Bayern Munich. Alonso is on the verge of securing Bayer Leverkusen their first ever Bundesliga title after moving ten points clear of Bayern in the standings over the weekend, while they are also the last remaining side unbeaten across all competitions in Europe’s top five leagues this season. His work at the BayArena has not gone unnoticed. 90min understands he leads Liverpool’s seven-man shortlist to succeed Jurgen Klopp this summe…