# Missing 'pi'-Symbol from euler font in sans serif?

I want to set one formula in my document in a sans serif font. As a math font I use the eulervm-Package. Unfortunately, the \pi is missing (instead a small line appears).

Here is a minimal example:

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{eulervm}
\begin{document}
\pagestyle{empty}

$2\cdot\pi$

$\mathsf{2\cdot\pi}$

\end{document}

It makes no difference, whether I take pdflatex or latex. When I remove the fontenc package, the problem is still there, but then I get a \beta-symbol instead of the desired \pi.

Is there a workaround or something I do not understand here?

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