I think it would help to state that Brooklyn is in New York City to help those unsure as to where it is
"Toppin moved along with his mother and younger brother to Ossining, New York" - Toppin, his mother and younger brother relocated to
"his only year playing varsity," - the word "during" is missing from the start of this portion of text
"He committed to play college basketball at the University of Dayton over offers Rhode Island and Georgetown while also receiving offers from Georgia, Texas A&M, Minnesota and Texas Tech." - more concise; He committed to play college basketball at the University of Dayton over offers from Rhode Island, Georgetown, Georgia, Texas A&M, Minnesota and Texas Tech.
"Toppin was named preseason first team All-Atlantic 10 and to the Karl Malone, Lute Olson, and Naismith Award watchlists." - was named to the preseason first-team All-Atlantic 10 and the
"He was named the Atlantic 10 Player of the Week for the first week of the season after scoring a career-high 29 points with 12 rebounds in the Flyers' season opening 86–81 win over Indiana State and the following week, as well as the National Player of the Week by NBC Sports, again after averaging 22.3 points, 7.0 rebounds, 2.3 assists and 1.3 blocks over three games in the 2019 Maui Invitational Tournament as he led the Flyers to the tournament final before losing in overtime to Kansas." - this run-off sentence should be ideally split into two or three separate sentences
"Toppin scored a career-high 31 points in a 77-59 win" - replace the hyphen with an en dash (–) per MOS:DASH
"including a school record 10" - school-record
"Toppin sprained his ankle" - ESPN and NBC Sports Washington both state this was his left ankle so you can include that extra bit of information into this portion of text
Wikilink shooting percentage to Field goal percentage help those unfamiliar with basketball terms
"Toppin was named first team All-Atlantic 10" - named to the first team
"Toppin was a consensus first team All-American selection, won the Karl Malone Award as the nation's top power forward and was the consensus National Player of the Year after named the Associated Press College Basketball Player of the Year, NABC Player of the Year, the Naismith College Player of the Year and awarded the Oscar Robertson Trophy and the John R. Wooden Award.[28][29][30][31][32][33]" - don't place a large amount of references together, rather you place them appropriately and individually to each of the awards mentioned in the sources
Career statstics
The college stats table should be referenced with reliable sources to verify the information contained within it
Reference 10 is missing the author who wrote the story for Dayton Daily News
Reference 14 is missing the date it was published and the website that published the story
Reference 23 should include Associated Press as the agency that provided ESPN with the story that it published
Reference 25 does not have the author who wrote the piece for ESPN, which can be found at the bottom of the article
The publication date for Reference 35 has not been included
Reference 39 is missing the date on which Sports Spectrum published it
Will be placing this review on hold to allow the nominator to address/respond to the queries raised above. MWright96 (talk) 18:54, 10 April 2020 (UTC)[reply]
@MWright96: All comments have been addressed Sportzeditz (talk) 19:33, 10 April 2020 (UTC)[reply]
@Sportzeditz: NIce. Now promoting to GA class. Note I have archived a dead source that I failed to spot and have included the date it was published. MWright96 (talk) 19:50, 10 April 2020 (UTC)[reply]