2 examples of arena's in sentences

The color of the mantle which on his arm he bore Is like the dark arena's dust when it is drenched in gore.

Yet if no heart of modern frame Glows with the antient hero's flame, The dire Arena's horrid stage Is banish'd from this milder age; Those savage virtues too are fled At which the human feelings bled.

2 examples of  arena's  in sentences