${\displaystyle {\begin{array}{ccc}{}&{}&Mf\\{}&i\nearrow &\left\downarrow {\begin{aligned}\\r\\{}\end{aligned}}\right.\\{X}&{\xrightarrow[{\quad f\quad }]{}}&Y\end{array}}}$

In your article, replace the image with:

<math>\begin{array}{ccc}
{} & {} & Mf \\
{} & i \nearrow & \left\downarrow \begin{align} \\ r \\ {} \end{align} \right. \\
{X} & \xrightarrow[\quad f \quad]{} & Y
\end{array}</math>

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