New York Giants offensive lineman Francis Mauigoa is just getting started in his career as an NFL guard, but he’s already earning rave reviews from head coach John Harbaugh. “Sisi was just fantastic,” said Harbaugh, referring to the No. 10 overall pick in the 2026 draft by his nickname. “He took pretty much every rep–looked like a natural at guard.” Mauigoa smiled when told of his head coach’s words, but he knows there is a lot more work to be done since he’s relatively new to the position. “ I don't have that much space to work with,” he said regarding the biggest adjustment to go from tackle to guard. “Playing at tackle, you have all the space, where a guard, everything happens so fast.…