Zieler is expected to provide competition for Leicester's regular goalkeeper, Kasper Schmeichel.
And migratory birds that extend their visits may provide competition for some avian natives.
Wenger sees the England international as having the experience and mobility to provide competition for Mikel Arteta and Mathieu Flamini.
A keeper to provide competition for Joe Hart, with Reading's Alex McCarthy the required calibre of candidate.
At Arsenal he will provide competition for the first-choice keeper Wojciech Szczesny while helping to fill the gap left by Lukasz Fabianski, who has joined Swansea.
The assessment was sobering news for supporters of charter schools, who say they provide competition for traditional public schools and offer parents a much-needed alternative.
Not long after, a consortium of European countries set up Eutelsat, based in Paris, to speed development of satellite services in that region and provide competition for Intelsat.
But the early drafts do not include a public option - a federally funded scheme to provide competition for the insurance companies, which is also favoured by Obama.
The public option would guarantee that there was always at least one good choice available in the marketplace, and would provide competition for private insurers.
The son of Van Gaal's right-hand man in Brazil would provide competition for Luke Shaw at left-back and an option in central midfield.
Martínez's priorities were a central defender to provide competition for Phil Jagielka and John Stones, a No10 playmaker and a striker.
