In this case, I'd suggest to call it "View all".
- This unambiguously tells the user that there is only a selection of articles listed (too).
- It's assured that there is a full list of articles accessible (while "View more" could mean that you'd only get 5 more).
- The selected articles are included on the View-all-page, too.
Because the additional article links are not inserted on the same page, you should style the "View all" as a hyperlink, to tell the user that a new page will be loaded.
The sum of all articles could be included in the link (e.g. "View all (27)"). If the selected articles are the only articles yet, you should still add a link to the View-all-page (because it might be useful), if it is not linked prominently at another place, e.g. in the heading (in this case I'd omit the link). Maybe you could use "View all (22 more)", and in the case of no additional articles, just "View all", but I'm not totally sure about it; I'd prefer the variant with the total sum.
For accessibility, you might want to include the article type in the link, e.g. "View all Sports articles" resp. "View all Sports articles (27)". Why? For example because some screenreader users use a link list, which lists all links on a page. If you'd omit the article type, the screenreader would read several links with the same description ("View all", "View all", "View all"), and it would not be clear to the user what kind of articles are behind which link. If the article type is included, you could also simply use "All Sports articles".