Sentence:  In the event they lacked a proper midfield bolt, with Toni Kroos and Sami Khedira huffing around in pursuit of the whizzing green machine. The centre-backs looked flustered, left to deal with three on two as Mexico broke. Löw's 4-2-3-1 seemed antiquated and creaky, with the old World Cup <WSD>shark</WSD> Thomas Müller flat-footed in a wide position. 
Meaning of the word marked with <WSD> tags:  A relentless and resolute person or group, especially in business.