In Hebrew verse 9 is numbered 41.1, as the Revised Standard Version footnote indicates.

The hope of a man is literally “his hope.” There is no noun for “his” to refer back to, and so Revised Standard Version supplies of a man. In order to get around this problem, Dhorme transposes verses 9 and 10 so that the antecedent is found in verse 10b, which is placed before verse 9. Hebrew Old Testament Text Project makes two suggestions: the first agrees with Revised Standard Version, and the second “the hope in it,” which they say means “the hope of attaining it.” Good News Translation restructures verse 9 and clearly states who the participants are. “Anyone” is supplied as the subject of the phrase in line b at the sight of, and so we get “Anyone who sees.” Him, referring to Leviathan, is made the object of “sees.” Hope … is disappointed becomes the main verb phrase translated as “loses courage,” and he is laid low becomes “and falls to the ground,” a coordinate clause with “loses courage.” Although considerably rearranged, this rendering agrees with the thought expressed in Revised Standard Version and is recommended to translators.

Quoted with permission from Reyburn, Wiliam. A Handbook on Job. (UBS Helps for Translators). New York: UBS, 1992. For this and other handbooks for translators see here .