Please somebody explain me why this
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
\usepackage{lipsum}
\usepackage{graphicx}
\usepackage{wrapfig}
\begin{document}
\begin{wrapfigure}{l}{3cm}
\includegraphics[width=3cm]{download.jpg}
\end{wrapfigure}
foobar
\lipsum[1]
\end{document}
does exactly what I want and produces
while this (notice {foobar} instead of foobar) gives me this weirdness: 
To be specific, I want to use {\large foobar}.
